Question

Simplify (x + 5)2 using the square of a binomial formula.
x² + 10x + 25
x²-10X-25
x²-10x+25
x² + 10x - 25

Answer 1

Answer:

$x^2 + 10x + 25$

Step-by-step explanation:

Hello!

Formula: $(a +b)^2 = a^2 + 2ab + b^2$

• a = x
• b = 5

Plug it into the formula and simplify.

Simplify

• $(a +b)^2 = a^2 + 2ab + b^2$
• $(x +5)^2 = x^2 + 2(x)(5) + 5^2$
• $(x +5)^2 = x^2 + 10x + 25$

The answer is the first option: $x^2 + 10x + 25$.