1.

Solve the quadratic equation by factorisation method x²-5x-36=0​

Answer»

Step-by-step explanation:

ANSWER

x

2

−5x−36=0

∴x

2

−(9−4)x−36=0

∴x

2

−9x+4x−36=0

∴x(x−9)+4(x−9)=0

∴(x−9)(x+4)=0

∴x=9 or x=−4

∴ The ROOTS of the given EQUATION are 9 and −4.



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