Question

Find the product.
(x+7)^2

Answer 1

(x+7)(x+7)

x^2 + 7x + 7x + 7(7)

x^2 + 14x + 49

Answer 2

(x+7)^2


(x+7)(x+7)


x(x+7)+7(x+7)


x^2+7x+7x+49


x^2+14x+49

Answer 3

If you have the form \[(a + b)^2\] A easy way to do this is to remember that the equation equals \[a^2 + 2ab + b^2\] So in the problem \[(x+7)^2\] a = x and b = 7 so just plug in the numbers and you get \[(x)^2 + 2(7x) + (7)^2\] Which equals \[x^2 + 14x + 49\]