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svp [43]
3 years ago
9

Can someone help me in this? a^2-ab-b-1

Mathematics
1 answer:
zheka24 [161]3 years ago
7 0

Answer:

(a + 1) (a − b − 1)

Step-by-step explanation:

I assume you're trying to factor the expression?  If so, use quadratic formula to find the roots.

a = [ -(-b) ± √((-b)² − 4(1)(-b−1)) ] / 2(1)

a = [ b ± √(b² + 4b + 4) ] / 2

a = [ b ± (b + 2) ] / 2

a = -1 or b + 1

(a − (-1)) (a − (b + 1))

(a + 1) (a − b − 1)

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