How do you multiply ${(2 x + 6)}^{2}$ $(2x + 6)^2$ ?

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Answer 1 · 2018-07-16T12:13:32

${(2 x + 6)}^{2} = 4 x^{2} + 24 x + 36$ $(2x+6)^2=4x^2+24x+36$

using

${(a + b)}^{2} = a^{2} + 2 a b + b^{2}$ $(a+b)^2=a^2+2ab+b^2$

we get

${(2 x)}^{2} + 2 \cdot 2 x \cdot 6 + 6^{2} = 4 x^{2} + 24 x + 36$ $(2x)^2+2*2x*6+6^2=4x^2+24x+36$

How do you multiply (2x + 6)^2(2x+6)2 (2x + 6)^2?