Math, asked by amarjeetladhwal24, 1 year ago

factorise 5x² -16 x -21

Answers

Answered by rkrathor8877457276

1

Step-by-step explanation:

hope it will help you to solve your problems

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Answered by rishabhsahuraj

3

Answer:

21,-1

Step-by-step explanation:

5x² -16x-21= 0

⇒5x²+5x-21x-21=0

⇒5x(x+1)-21(x+1)=0

⇒(x-21)(x+1)=0

∴x=21,-1

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