Question

if a =2x²-5x -7, B =x² +4x-3 and c =4x²-4x+2

a) what will be the value of A-B-C
b) by substituting x =1,what eill u get
c) what will be thr sum of b and c
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Answer 1

Answer

Forthe equation 4x + x(p+1) +1 = 0to have two equal roots, the condition is Discriminant = 0

or b 4ac = 0

or (p +1)? – 4 x 4 x 1=0

or p + 2p +1- 16 = 0

or p +2p - 15 = 0

or (p + 5)(p - 3) = = -5 or p=

3

0

Hence one of values of nis g