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