Question

solve the following equation by factorisation,X2+x-20=0​

Answer 1

Answer:

x= -5 or x= 4

Explanation:

x²+x-20=0

x²+5x-4x-20=0

x(x+5)-4(x+5)=0

(x+5) (x-4)=0

∴(x+5)=0 or (x-4)=0

∴x= -5 or x=4

hope it will help you...

Answer 2

Explanation:

please see the attachment

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