ដោះស្រាយ left(88-90.875right)^2+left(94-90.875right)^2+left(93-90.875right)^2+left(90-90.875right)^2+{left(91-90.875right)}^2+{left(94-90.875right)}^2+{left(90-90.875right)}^2+{left(87-90.875right)}^2

$${ \left(88-90.875 \right) }^{ 2 } + { \left(94-90.875 \right) }^{ 2 } + { \left(93-90.875 \right) }^{ 2 } + { \left(90-90.875 \right) }^{ 2 } + { \left(91-90.875 \right) }^{ 2 } + { \left(94-90.875 \right) }^{ 2 } + { \left(90-90.875 \right) }^{ 2 } + { \left(87-90.875 \right) }^{ 2 }$$

វាយតម្លៃ

$$48.875$$

ជំហានចម្លើយ

ដក​ 90.875 ពី 88 ដើម្បីបាន -2.875។

$$\left(-2.875\right)^{2}+\left(94-90.875\right)^{2}+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ -2.875 នៃ 2 ហើយបាន 8.265625។

$$8.265625+\left(94-90.875\right)^{2}+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 94 ដើម្បីបាន 3.125។

$$8.265625+3.125^{2}+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ 3.125 នៃ 2 ហើយបាន 9.765625។

$$8.265625+9.765625+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

បូក 8.265625 និង 9.765625 ដើម្បីបាន 18.03125។

$$18.03125+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 93 ដើម្បីបាន 2.125។

$$18.03125+2.125^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ 2.125 នៃ 2 ហើយបាន 4.515625។

$$18.03125+4.515625+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

បូក 18.03125 និង 4.515625 ដើម្បីបាន 22.546875។

$$22.546875+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 90 ដើម្បីបាន -0.875។

$$22.546875+\left(-0.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ -0.875 នៃ 2 ហើយបាន 0.765625។

$$22.546875+0.765625+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

បូក 22.546875 និង 0.765625 ដើម្បីបាន 23.3125។

$$23.3125+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 91 ដើម្បីបាន 0.125។

$$23.3125+0.125^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ 0.125 នៃ 2 ហើយបាន 0.015625។

$$23.3125+0.015625+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

បូក 23.3125 និង 0.015625 ដើម្បីបាន 23.328125។

$$23.328125+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 94 ដើម្បីបាន 3.125។

$$23.328125+3.125^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ 3.125 នៃ 2 ហើយបាន 9.765625។

$$23.328125+9.765625+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

បូក 23.328125 និង 9.765625 ដើម្បីបាន 33.09375។

$$33.09375+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 90 ដើម្បីបាន -0.875។

$$33.09375+\left(-0.875\right)^{2}+\left(87-90.875\right)^{2}$$

គណនាស្វ័យគុណ -0.875 នៃ 2 ហើយបាន 0.765625។

$$33.09375+0.765625+\left(87-90.875\right)^{2}$$

បូក 33.09375 និង 0.765625 ដើម្បីបាន 33.859375។

$$33.859375+\left(87-90.875\right)^{2}$$

ដក​ 90.875 ពី 87 ដើម្បីបាន -3.875។

$$33.859375+\left(-3.875\right)^{2}$$

គណនាស្វ័យគុណ -3.875 នៃ 2 ហើយបាន 15.015625។

$$33.859375+15.015625$$

បូក 33.859375 និង 15.015625 ដើម្បីបាន 48.875។

$$48.875$$

ដាក់ជាកត្តា

$$\frac{17 \cdot 23}{2 ^ {3}} = 48\frac{7}{8} = 48.875$$