Question

Factor each trinomial below. Please show your work and check your answer.

x2 – 8x + 15
a2 – a – 20
a2 – 5a – 20
a2 + 12ab + 27b2
2a2 + 30a + 100
Pleasepleaseplease

Answer 1

is it x^2 or 2x

Answer 2

(-5+x) (-3+x),
(-5+a) (4+a),
-20-5 a+a^2,
(a+3 b) (a+9 b),
2 (5+a) (10+a)

Answer 3

x2 – 8x + 15 = (x-5)(x-3)
a2 – a – 20 = (a-5)(a+4)
a2 – 5a – 20 = not fractor
a2 + 12ab + 27b2 = (a+9b)(a+3b)
2a2 + 30a + 100 = (2a+10)(a+10)