Question

If x = 10, the value of 4x² + 20x + 25 =

(2 Points)

256

425

625

575

​

Answer 1

Answer:

your answer is 625

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Answer 2

Answer:

625

Step-by-step explanation:

It takes a shorter time if we use identity here.

Identity to be used: $a^2x^2+2abx+b^2=(ax+b)^2$

The polynomial is $(2x+5)^2$.

If we substitute into the bracket

it becomes $(2\times 10+5)^2$.

The answer is $625$.