Select the expression that is equivalent to (x-3)^2

Question

asked Jun 11, 2020 231k views

2 Answers

Etienne Martin · Answer 1 · 2020-06-15T01:15:38+0000

Answer:

C.

Explanation:

We have the expression
(x-3)^2 we can rewrite it as:

(x-3)^2=(x-3)(x-3) and solve it with distributive property or we can use the formula to multiply a binomial by itself. The formula is:

(a+b)^2=a^2+2ab+b^2

or

(a-b)^2=a^2-2ab+b^2

Then:

$(x-3)^2=x^2-2.x.3+3^2\\(x-3)^2=x^2-6x+9$

The correct option is C.