History, asked by maitidipak53, 6 days ago

5(x−3)(x+3) Hint.
(5x-15)(5x+3)
5x-15+5x+3
5x-20x+3
5x2-(15+5)x+3
5x2-15x-5x+3
5x(x-15)-5(x-15)
(x-15)or(5x-15)
,
ans. x-15=0 or, 5x-15=0
or,x=15. =x=15÷5
:x=3

Answers

Answered by sohambankura85

2

Answer:

5(x−3)(x+3) Hint.

(5x-15)(5x+3)

5x-15+5x+3

5x-20x+3

5x2-(15+5)x+3

5x2-15x-5x+3

5x(x-15)-5(x-15)

(x-15)or(5x-15)

,

ans. x-15=0 or, 5x-15=0

or,x=15. =x=15÷5

:x=3

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