Find the sum
x + 7x - 12x
-4x
Simplify
2*(3x^2-4x)
6x^2-8x
Solve for x
x^2-7x+6
X1=6, X2=1
Solve for X
(x-4)(x-6) = 0
X1=4, X2=6
Find the product
2x * 5x^2
10x3
Simplify
(x^4+2x^3+5x^2-3x)+(4x^3-9x^2+7x-1)
x^4+6x^3-4x^2+4x-1
Solve for x
6x^2+5x+1=0
X1=-1/3, X2=-1/2
Solve for X
x(x^2 - 64)
X1=0, X2=8, X3=-8
Find the quotient
(1/2x^2):(3/2x)
x/3
Find the product
3a^2b^3 * (3a-b+1)
9a^3b^3-3a^2b^4+3a^2b^3
Reduce and Solve
(x+2)(x-1)+2=x(2-x)
X1=1/2, X2 = 0
Solve for X
12/x + 1 = x +2
Simplify
8x^2 - 5x^2 +2/3x^2 - x^2/3x^2+7/3x^2
6x^2-x^4/3
Find the product
5x^3y^3 * (x^2y^4 +x^2 +x-1)
5x^5y^7+5x^5y^3+5x^4y^3-5x^3y^3
The area of a rectangle is 150cm2, and its perimeter is 50cm. What are its dimensions?
L = 15cm, W = 10cm
Solve for X
15/(x-1) = 12/x +1
X1=6, X2=-2
Simplify
3/(2x) - 2/(3x) - 3/(4x)
1/x
Simplify
(x-3)(2x+5)-4(x^3+7x)
-4x^3+2x^2-29x-15
If I multiply my current age by my age last year, I get the same result as if I multiply my age from four years ago by my age in 4 years time. How old am I now?
16 years old
The total area of a cylinder that is 22m high is 1110π m2. Find the radius.
15m