What is factor 8a^2-2ab-21b^2 ?

The solution to factor 8a^2-2ab-21b^2 is (2a+3b)(4a-7b)

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factor 8a^2-2ab-21b^2

factor

8 a^{2} - 2 ab - 21 b^{2}

(2 a + 3 b) (4 a - 7 b)

Solution steps

8 a^{2} - 2 ab - 21 b^{2}

Break the expression into groups

= (8 a^{2} + 12 ab) + (- 14 ab - 21 b^{2})

Factor out

4 a

from

8 a^{2} + 12 ab : 4 a (2 a + 3 b)

Factor out

- 7 b

from

- 14 ab - 21 b^{2} : - 7 b (2 a + 3 b)

= 4 a (2 a + 3 b) - 7 b (2 a + 3 b)

Factor out common term

2 a + 3 b

= (2 a + 3 b) (4 a - 7 b)

y > - 3 + 5

3 k^{2} - 14 k + 4 = - 4

(e^{6 x})^{2}

x^{3} - 4 x + 2 x^{2} - 8

What is factor 8a^2-2ab-21b^2 ?
The solution to factor 8a^2-2ab-21b^2 is (2a+3b)(4a-7b)