What is factor a^2-2ab-15b^2 ?

The solution to factor a^2-2ab-15b^2 is (a+3b)(a-5b)

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factor a^2-2ab-15b^2

factor

a^{2} - 2 ab - 15 b^{2}

(a + 3 b) (a - 5 b)

Solution steps

a^{2} - 2 ab - 15 b^{2}

Break the expression into groups

= (a^{2} + 3 ab) + (- 5 ab - 15 b^{2})

Factor out

a

from

a^{2} + 3 ab : a (a + 3 b)

Factor out

- 5 b

from

- 5 ab - 15 b^{2} : - 5 b (a + 3 b)

= a (a + 3 b) - 5 b (a + 3 b)

Factor out common term

a + 3 b

= (a + 3 b) (a - 5 b)

25 t + 5 t^{2} + 30 = 0

\frac{8}{( 2 ( 2 + 2 ) )}

7^{\frac{5}{2}}

2 > - 3 t - 10

- 14 > w + 3 or 3 w \geq - 27

What is factor a^2-2ab-15b^2 ?
The solution to factor a^2-2ab-15b^2 is (a+3b)(a-5b)