Evaluate
\left(\frac{7z-19}{10}\right)^{2}
Expand
\frac{49z^{2}}{100}-\frac{133z}{50}+3.61
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0.49z^{2}-2.66z+3.61
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(0.7z-1.9\right)^{2}.
0.49z^{2}-2.66z+3.61
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(0.7z-1.9\right)^{2}.
Examples
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Matrix
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Simultaneous equation
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Limits
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