Question

If p (x) = ax? + bx + c and a + c = b, then what is the point of p (x)? (A) x + 1 (b) 2x-1 (c) x-1 (d) 2x + 1

Answer 1

Answer:

P(x)=ax

2

+bx+c

Hence, for real roots,

b

2

−4ac≥0

Q(x)=−ax

2

+dx+c

Hence, for real roots,

d

2

+4ac≥0

Now,

ac



=0

Now if ac<0

Then,

b

2

−4ac>0

Hence, P(x).Q(x) has atleast 2 real roots .

If ac>0

Then

d

2

+4ac>0

Hence, P(x).Q(x) has atleast 2 real roots .

Step-by-step explanation:

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