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MakcuM [25]
3 years ago
13

.

Mathematics
1 answer:
netineya [11]3 years ago
4 0

Answer:

see below

Step-by-step explanation:

(4x^2 + 20x + 25)

Rewriting as

( 2x) ^2 +2*2x * 5 + 5^2

We recognize this is a perfect square trinomial

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

where a = 2x and b = 5

(4x2 + 20x + 25) = ( 2x +5)^2

Each side is (2x+5) units longs

(4x^2 − 9y^2)

Rewriting

(2x)^2 - (3y)^2

We recognize this is  the difference of squares

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

(2x-3y)(2x+3y)

The dimensions are (2x-3y) by (2x+3y)

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