Algebra

Simplify

100

4x - 6 - 6x - 9

-2x -15

200

4x - x² -x -x²

3x - 2x²

300

Expand and Simplify:

4(6x -11) -10x

14x -44

400

Expand and Simplify:

6(7x + 1) - 5(2x + 3)

32x - 9

500

Expand and Simplify:

4(2x² + 4x + 5) -3(x + 3)

8x²+ 13x +11

Expand

100

3(2x+9)

6x + 27

200

5(4x-3)+2

20x-13

300

3x-6(5x-10)

-27x+60

400

(x+4)(x-5)

x²-x-20

500

(x-3)(x+2)(x-1)

x³-2x²-5x+6

Factorise

100

25-45x

5(5-9x)

200

14x²y -21x

7x(2xy-3)

300

x²-4x+4

(x-2)(x-2) 

400

16x²-1

(4x+1)(4x-1)

500

20x²-13x-21

(5x-7)(4x+3)

Subject of the formula

100

Make x the subject:

t=a/x

x=a/t

200

Make x the subject:

a=x/2 - b

x=2(a+b)

300

Make x the subject:

q=/x-2

x=q²+2

400

Make x the subject:

q=/x -7

x=(q+7)²

500

ax + p =b - dx

x= (b-p) / (a+d)

Solve for x

100

17=14-y

y=-3

200

5=(8a/9) + 9

a=-4.5

300

5(3x-8)=-115

x=-5

400

10x-103=x-13

x=10

500

2(3x+4)=3x+29

x=7