Question

factorize 20(2a-5b³)
+4(2a-5b)²​

Answer 1

Answer:

4a

Step-by-step explanation:

(2a+5b)

2

+(2a−5b)

3

(2a)

3

+(5b)

3

+3(2a)

2

5b+3(2a)(5b)

2

+(2a)

3

−(5b)

3

−3(2a)

2

5b+3(2a)(5b)

2

=16a

3

+300ab

2

=4a[4a

2

+75b

2

]

⇒4a is a factor

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