(2y2-5y+1) + (y2-y-4)
3y2-6y-3
(-2y2+3y-6)(y-2)
-2y3+7y2-12y+12
Let f(x)=2x-7 and g(x)=x2+4. Find g(f(3)).
5
x3+2x2-15x
x(x+5)(x-3)
x2-2x+3=0
x=3, x=-1
(6m3-5)+(m3+4m2-9m-2)
7m3+4m2-9m-7
(x+3)(3x2-2x+4)
Let f(x)=2x2+9 and g(x) = x-2. Find g(f(3)).
7
x3+64
(x+4)(x2-4x+16)
x3-5x2-16x+80=0
x=4, x=-4, x=5
(3x3-5x2+3x-9) - (x3+6x2+11)
2x3-11x2+3x-20
(x+2)(3x2-x-5)
3x3+5x2-7x-10
Let f(x)=2x+5 and g(x) = 3x-6. Find f(g(x)).
6x-7
x3-3x2-16x+48
(x-4)(x+4)(x-3)
x3+3x2-x-3=0
x=1, x=-1, x=-3
(8x3-x2-5x+1) - (3x3+2x2-x+7)
5x3-3x2-4x-6
(3t+4)(3t-4)
9t2-16
Let f(x)=3x-8 and g(x)=2x2. Find g(f(x)).
18x2-96x+128
x3+7x2-9x-63
(x-3)(x+3)(x+7)
x2+16=0
x=4i, x=-4i
(4z2+9z-12) - (5z2-z+3)
-z2+10z-15
(x-5)(x+1)(x+3)
x3-x2-17x-15
Let f(x) = 2x2+4x-2 and g(x) = x+2. Find f(g(x)).
2x2+12x+14
4t6-20t4+24t2
4t2(t2-2)(t2-3)
2x4-12x2+10=0
x=1, x=-1, x=+/- sqrt(5)