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Problemi Simili mit-Tiftix tal-Web

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9\left(4x^{2}+4x+1\right)-42\left(2x+1\right)+49
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(2x+1\right)^{2}.
36x^{2}+36x+9-42\left(2x+1\right)+49
Uża l-propjetà distributtiva biex timmultiplika 9 b'4x^{2}+4x+1.
36x^{2}+36x+9-84x-42+49
Uża l-propjetà distributtiva biex timmultiplika -42 b'2x+1.
36x^{2}-48x+9-42+49
Ikkombina 36x u -84x biex tikseb -48x.
36x^{2}-48x-33+49
Naqqas 42 minn 9 biex tikseb -33.
36x^{2}-48x+16
Żid -33 u 49 biex tikseb 16.
9\left(4x^{2}+4x+1\right)-42\left(2x+1\right)+49
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(2x+1\right)^{2}.
36x^{2}+36x+9-42\left(2x+1\right)+49
Uża l-propjetà distributtiva biex timmultiplika 9 b'4x^{2}+4x+1.
36x^{2}+36x+9-84x-42+49
Uża l-propjetà distributtiva biex timmultiplika -42 b'2x+1.
36x^{2}-48x+9-42+49
Ikkombina 36x u -84x biex tikseb -48x.
36x^{2}-48x-33+49
Naqqas 42 minn 9 biex tikseb -33.
36x^{2}-48x+16
Żid -33 u 49 biex tikseb 16.