What is factor 7a^2-66a+80 ?

The solution to factor 7a^2-66a+80 is (7a-10)(a-8)

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factor 7a^2-66a+80

factor

7 a^{2} - 66 a + 80

(7 a - 10) (a - 8)

Solution steps

7 a^{2} - 66 a + 80

Break the expression into groups

= (7 a^{2} - 10 a) + (- 56 a + 80)

Factor out

a

from

7 a^{2} - 10 a : a (7 a - 10)

Factor out

- 8

from

- 56 a + 80 : - 8 (7 a - 10)

= a (7 a - 10) - 8 (7 a - 10)

Factor out common term

7 a - 10

= (7 a - 10) (a - 8)

u^{2} + 6 u + 9

10 x^{2} + 21 x - 10 = 0

(5 z + 1)^{2} + 100 = 0

- 3 (x - 1)^{2} - 6 = - 2 (x + 1)^{2} + 2

2 x = 3 x