Simplify the following:
x2+3x2+2x
4x2+2x
Expand & simplify the following:
8(a-2b)
8a-16b
Expand & simplify the following:
(x+4)(x+6)
x2+10x+24
Fully factorise the following:
3x+6
3(x+2)
Fully factorise the following:
x2+5x+6
(x+2)(x+3)
If k=3, j=5 and m=-2, find the value of:
4k+7-3j
4
Simplify the following:
3t+7-t-11
2t-4
Expand & simplify the following:
-3x(7-4x)
12x2-21x
Expand & simplify the following:
(x+6)(x-6)
x2-36
Fully factorise the following:
-7a-21a2
-7a(1+3a)
Fully factorise the following:
x2-9x+20
(x-5)(x-4)
If k=3, j=5 and m=-2, find the value of:
8km-2j
-58
Simplify the following:
2cd+dc-4d+3cd
6cd-4d
Expand & simplify the following:
6x(x2+5x-2)
6x3+30x2-12x
Expand & simplify the following:
(3x+2)(4x+1)
12x2+11x+2
Fully factorise the following:
4x2-8x+12
4(x2-2x+3)
Fully factorise the following:
x2+x-72
(x+9)(x-8)
If p=4, q=-3, and r=2 evaluate:
(p+r)/q
-2
Simplify the following:
3x3-x2+2x2-3x+x3
4x3+x2-3x
Expand & simplify the following:
6(x-2)-8x
-2x-12
Expand & simplify the following:
(x-3)(x+6)+4(x+2)
x2+7x-10
Fully factorise the following:
9x2-45x-27x3
9x(x-5-3x2)
Fully factorise the following:
4x2+28x+40
4(x+5)(x+2)
If p=4, q=-3, and r=2 evaluate:
((3p+r))/(p+r-2q
3/2
Simplify the following:
ab2+2ab+a2b
ab2+2ab+a2b
Expand & simplify the following:
4(3x-2)-(3x+1)
9x-9
Expand & simplify the following:
(x+2)(x-2)+(x+6)2
2x2+12x+32
Fully factorise the following:
x(x-3)-4(x-3)
(x-3)(x-4)
Fully factorise the following:
x3+27x2+26x
x(x+26)(x+1)
If a=4, b=-1 and c=3, evaluate:
sqrt(8c+2ab)
4