What is factor ab+9ay-b^2-9by ?

The solution to factor ab+9ay-b^2-9by is (b+9y)(a-b)

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factor ab+9ay-b^2-9by

factor

ab + 9 a y - b^{2} - 9 b y

(b + 9 y) (a - b)

Solution steps

ab + 9 a y - b^{2} - 9 b y

Factor out common term

a

= a (b + 9 y) - b^{2} - 9 b y

Apply exponent rule:

a^{b + c} = a^{b} a^{c}

b^{2} = bb

= a (b + 9 y) - bb - 9 b y

Factor out common term

b

= a (b + 9 y) - b (b + 9 y)

Factor out common term

(b + 9 y)

= (b + 9 y) (a - b)

x^{2} + 3 - 28

- 4 cos (2 x - 2)

9 (a)^{2} + 2

(x - (3 - 2 i)) (x - (3 + 2 i))

4 - (a^{2} + b^{2}) + 2 ab

What is factor ab+9ay-b^2-9by ?
The solution to factor ab+9ay-b^2-9by is (b+9y)(a-b)