Question

Question 1 of 10

Answer 1

Answer:

Option C

(4x + 5)(4x +5)

Step-by-step explanation:

Step 1: Write the expression

$16x^{2} + 40x + 25$

Step 2: Choose to integers that when you add you get 40 and when multiplied you get 400

The integers are +20 and +20

Step 2: Split 40x into + 20x nd + 20 x

Therefore

$16x^{2} + 40x + 25 = 16x^{2} + 20x + 20x + 25$

Next

$16x^{2} + 20x + 20x + 25 = 4x(4x + 5) + 5(4x + 5)\\(4x + 5)(4x + 5)$

Answer 2

the answer is C

C. (4x + 5)(4x + 5)