(x - 3)(x + 7)
4x21
x2 - 4
9 - x2 will factor into (3 - x)(3 + x)
x2-14 does factor but not pretty; it factors to: (x+sqrt14)(x-sqrt14).
x2-3x-28
4*21=84.
x2 + 6x - 2 can not be factored
x^(5) + x^(2)= x^(2) ))x^(3) + 1) Think of '1' as '1^(3)' Hence x^(2)(x^(3) + 1^(3)) x^(2)(x + 1)(x^(2) - x + 1^(2)) or x^(2)(x + 1)(x^(2) - x + 1) Done!!!!!
x2-9x = x(x-9)
x2-x=x(x-1)
x2 - 13 + 30 = x2 + 17, which has no real factors.
x2-6x can be factored into x(x-6). Simply factor out the "x" from both factors.