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Yasmin
@Yasmin
June 2021
2
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Factorise 2x^2 - 7x - 15
Answers & Comments
sweetysiri92
2x^2-7x-15
⇒2x^2-10x+3x-15=0 (Factors)
⇒2x(x-5)+3(x-5)=0 (Taking 2x as common in first two terms and 3 as comon in next two terms)
⇒(2x+3)(x-5)=0 (Take x-5as common)
3 votes
Thanks 7
vikaskumar0507
2x² - 7x - 15
=> 2x² - 10x + 3x - 15
=> 2x(x-5) + 3(x-5)
=> (x-5)(2x+3)
6 votes
Thanks 22
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Answers & Comments
⇒2x^2-10x+3x-15=0 (Factors)
⇒2x(x-5)+3(x-5)=0 (Taking 2x as common in first two terms and 3 as comon in next two terms)
⇒(2x+3)(x-5)=0 (Take x-5as common)
=> 2x² - 10x + 3x - 15
=> 2x(x-5) + 3(x-5)
=> (x-5)(2x+3)