3x+5=17
x=4
Factor:
x2+7x+12
(x+3)(x+4)
Simplify:
(3x2+4x−1)+(2x2−5x+7)
5x2−x+6
Evaluate:
2 ^4
16
square root 72
6 square root2
4(x-2)+7= 3x+12
x=13
Solve:
x2−9x+20=0
x=4,5
Multiply:
(x+3)(x−5)
x2−2x−15
Solve:
3^x=81
X=4
Solve:
square root x+4=6
x=32
Find the slope of the line passing through:
(2,5) and (6,13)
m=2
Use the quadratic formula to solve:
2x2+3x−5=0
x=1,−25
Factor completely:
x3−4x2−12x
x(x−6)(x+2)
Evaluate:
log10(1000)
3
Simplify:
x2−9/x2+3x
x-3/x
Write the equation of the line with slope 3 passing through (2,-1)
y= 3x - 7
Find the vertex and axis of symmetry of:
y=x2−8x+11
Vertex (4,−5), axis x=4
Divide:
x3+2x2−5x+6x+3\x+3
Quotient x2−x−2, remainder 12
Solve:
log2(x)+log2(x−2)=3
4
Solve:
2/x + 3/x-1
x=2/5
Solve the system:
{2x+y=7
{3x−2y=4
(x,y)=(2,3)
A ball is launched upward from a platform. Its height is modeled by:
h(t)=−16t2+64t+80
Maximum height 144 feet
Use the Remainder Theorem to find the remainder when:
f(x)=2x3−5x2+x+7
is divided by (x−2)(x-2)(x−2).
Remainder 5
A population starts at 500 and grows by 8% each year.
Write an exponential model and find the population after 10 years.
P(t)=500(1.08)t, P(10)≈1079
Solve and identify any extraneous solutions:
Square root x+6=x−2
x=6 (valid), x=−1 (extraneous)