algebra 1
posted by mike on .
Can someone solve theses for me?
Factor the polynomial x2 + 7x + 12 completely
Factor the polynomial x2 – 4 completely
Factor the polynomial 18a2b – 4ab + 10a completely
x2 + 7x + 12 = (x+4)(x+3)
x2 – 4 = (x+2)(x2)
18a2b – 4ab + 10a = 2a(9ab  2b + 5)

Factor the following polynomial completely.
x2y2 + x4 + 9y2  9x2