solve the quadratic equation by factorisation method x²-5x-36=0
Answers
Answered by
2
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.
Answered by
45
Answer:
x2−5x−36=0
∴x2−(9−4)x−36=0
∴x2−9x+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.
Similar questions