Factoring trinomials
Find the GCF: 3x2, 12x
3x
Factor: x2-81
(x+9)(x-9)
Solve for x:
3x-7=11
x=6
Factor: x2-9
(x+3)(x-3)
Solve for x:
2x+8=5x-7
x=5
Factor: x4-121
(x2-11)(x2+11)
Solve the system of equations by using substitution.
3y+2x=32
x=7
y=6
Find the GCF: 18x3, 32x2, 6x
2x
Factor by GCF: 14x5-21x4
7x4(2x-3)
Factor: 4x2-25
(2x+5)(2x-5)
What is the slope (m) and y-intercept (b) of the following line?
y=5x-2
m=
b=
m=5
b=-2
Find the GCF: 12m4, 6m3, 24m2
6m2
Factor by GCF: 10b4-6b7
2b4(5-3b3)
Factor: 9a2-b2
(3a+b)(3a-b)
Solve the system of equations by using elimination.
2x + y = 9
3x – y = 16
(5, -1)