CBSE Class 8 Answered
find the value of a and b in x^2+ax-2=(x-1)(x+b)
Asked by harishtdm77 | 01 Oct, 2018, 19:01: PM
Expert Answer
x2 + ax - 2 = (x - 1)(x + b)
x2 + ax - 2 = x2 + bx - x - b
x2 + ax - 2 = x2 + (b - 1)x - b
Comparing both sides of coefficients we get
a = b - 1 and b = 2
a = 2 - 1 = 1
Answered by Sneha shidid | 03 Oct, 2018, 09:19: AM
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