Question

factorise 8+6(a+b)-5(a+b)²​

Answer 1

Step-by-step explanation:

$8+6(a+b)-5(a+b)² \\ 8 + 6a + 6b - 5 {a}^{2} + 5 {b}^{2}$

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Answer 2

$8 + 6(a + b) - 5 {(a + b)}^{2}$

$= -(5(a+b)²-6(a+b)-8)$

$= -(5a+b²+4a+b-10a+b-8)$

$= -((5a+4a-10a)+v²+(b+b)-8)$

$= -(-a+b²+2b-8)$

$=a-b²-2b+8$