What is factor 15f^2+2f-45 ?

The solution to factor 15f^2+2f-45 is (3f-5)(5f+9)

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factor 15f^2+2f-45

factor

15 f^{2} + 2 f - 45

(3 f - 5) (5 f + 9)

Solution steps

15 f^{2} + 2 f - 45

Break the expression into groups

= (15 f^{2} - 25 f) + (27 f - 45)

Factor out

5 f

from

15 f^{2} - 25 f : 5 f (3 f - 5)

Factor out

9

from

27 f - 45 : 9 (3 f - 5)

= 5 f (3 f - 5) + 9 (3 f - 5)

Factor out common term

3 f - 5

= (3 f - 5) (5 f + 9)

\frac{8 k + 9}{18} - \frac{2 k + 1}{18}

∣ x - 7 ∣ = 27

\frac{13}{3} = \frac{u}{11}

4 x^{2} + 16 x + 7

(x - 3)^{2} - 4 = 0