x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}
2x2+13x+15 = (2x+3)(x+5)
-9x - 3 - 3x = 4 + xcombine the -9x and -3x-12x - 3 = 4 + xsubtract x from each side-13x - 3 = 4add 3 to each side-13x = 7divide both sides by -13x = -7/13
x2 - 13x + 30 = (x - 3)(x - 10). In case you are provided with a list that you forgot to include with your question, then any of the following is a possible factor: x - 3; x - 10; 3 - x; or 10 - x.
5x-13x+6=0 5x-13x=-6 -8x=-6 -8x/-8=-6/-8 x = 3/4
13x-10x = 3
13x
x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}
(4x2 - 13x - 12)/(4x+ 3) = (4x + 3)(x - 4)/(4x + 3) = (4x + 3)(x - 4)/(4x + 3) = x - 4 :)
-15x - 3
2x2+13x+15 = (2x+3)(x+5)
-9x - 3 - 3x = 4 + xcombine the -9x and -3x-12x - 3 = 4 + xsubtract x from each side-13x - 3 = 4add 3 to each side-13x = 7divide both sides by -13x = -7/13
x2 - 13x + 30 = (x - 3)(x - 10). In case you are provided with a list that you forgot to include with your question, then any of the following is a possible factor: x - 3; x - 10; 3 - x; or 10 - x.
5x-13x+6=0 5x-13x=-6 -8x=-6 -8x/-8=-6/-8 x = 3/4
13x-11y-12 11 11 13x-1 -13x-13x=12
6x^2 -13x+6 = (3x-2)(2x-3) when factorized
13x^3