Factor (x9+8)
(x3 + 2)(x6 - 2x3 + 4)
What are the factors of x²+5x-50?
x²+5x-50
=(x - 5)(x + 10)
Solve for x:
x+2=10
x = 8
Let f(x)= 3x²+5x–1 and g(x)= 7x+4.
Find f(x) + g(x):
3x2+5x-1+7x+4
=3x2+5x+7x-1+4
=3x2+12x+3
Factor (27x3 – 64)
(3x – 4)(9x2 + 12x + 16)
What are the factors of 3x²-21x+18?
3x²-21x+18
=3(x2 - 7x + 6)
=3(x - 6)(x - 1)
Solve for x:
3x - 2 = 10
x = 4
Let f(x)=3x²+5x–1 and g(x)=4x²−7x+4
Find f(x) – g(x):
(3x2+5x-1)-(4x2-7x+4)
=3x2-4x2+5x+7x-1-4
= -x2 + 12x – 5
Factor (4x16 − 49)
(2x8−7)(2x8+7)
What are the factors of 6x²+11x−35?
6x²+11x−35
=(3x-5)(2x+7)
Solve for x:
2x + 3 = x - 6
x = -9
Let f(x) = 3x−2 and g(x) = 5x + 1.
Find f(x) ∙ g(x):
(3x-2)(5x+1)
=15x2 + 3x - 10x - 2
=15x2 – 7x – 2
Factor (2x² − 16x + 24)
2(x−6)(x−2)
What are the factors of x²−64?
x²−64
=(x+8)(x-8)
Solve for x:
4x³ + 5 = 37
x = 2
Let f(x)= 3x−2 and g(x)= 5x + 1.
Find g(f(x))
5(3x-2) + 1
=15x – 10 + 1
=15x - 9
Factor (x² + 13x + 36)
(x+9)(x+4)
What are the factors of 16x36−25?
16x36−25
=(4x18 + 5)(4x18 – 5)
Solve for x:
2(x + 6)² = 200
x = 4 and -16
Let f(x)= x2+2x−4 and g(x)= 3x+1.
Find f ◦ g.
(3x+1)2+2(3x+1)-4
=(3x+1)(3x+1)+2(3x+1)-4
=9x2+3x+3x+1+6x+2-4
=9x2 + 12x - 1