Factoring
Factor
x^2 - 6x - 16
(x - 8)(x + 2)
FOIL: (3x - 4)(3x + 4)
and what is it called?
9x^2 - 16
Difference of Squares
Simplify:
sqrt(25/36
5/6
Find the zero(s):
5x^2 - 20x + 20 = 0
{2}
(6x+2)(x-4)
{-1/3, 4}
Factor
25x^2 -144
(5x - 12)(5x + 12)
(x+7)(x+11)
x^2 + 18x + 77
Simplify:
root(3)(88
2 root(3)(11
Find the zero(s). (Round to the nearest tenth):
3x^2 -4x-6=0
{-0.9, 2.2}
x^2 -3x=18
{-3, 6}
Factor
8x^2 + 18x + 9
(4x + 3)(2x + 3)
(2x-3)(4x+9)
8x^2 +6x - 27
Simplify:
sqrt(40x^9)
2x^4 sqrt(10x)
Find the solution(s). (Round to the nearest tenth):
6x^2 +2x-1 = 4
{-1.1, 0.8}
2(x-4)^2 = 18
{1, 7}
Factor:
x^3 +4x^2 +3x + 12
(x + 4)(x^2 + 3)
(2x-7)^2
4x^2 -28x+ 49
Rationalize:
7/(2-sqrt3)
14+7sqrt(3)
Find the vertex. (Round to the nearest tenth.)
f(x)=-3x^2 +8x +2
(1.3, 7.3)
3x^2 - 7x + 2 = 0
{1/3, 2}
6x^4+8x^2=26x^3
2x^2 (3x-1)(x-4)
(x-2)(x^2-5x+1)
x^3 -7x^2 +11x-2
Simplify:
3sqrt(7)+2sqrt(63)-5sqrt(28)
-sqrt(7)
Find the vertex. Round to the nearest tenth.
f(x)=2x^2 + 27x-6
(-6.8, -97.1)
-x^2 -6x +8 = 0
(6+-sqrt(68))/(-2