What Is (2x-7)^2?
Answer:
You should know the formula/identity for that
(a-b)^2 = a^2 + b^2 - 2*a*b
therefore in your question a = 2x , b = 7
(2x-7)^2 = (2x)^2 + (7)^2 - 2* 2x * 7
&nbs
p; = 4x^2 + 49 - 28x
OR
&nbs
p; = 4x^2 - 28x +49
Hope this helps
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