Study

Expanding and factorising

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Expand 3y(3y-9)

9y^2-27y

Expand 6y(2y-7)

12y^2-42y

Factorise y^2+6y+2y^2

3y(y+2)

Expand x(x+5)

x^2+5x

Factorise 9y^2-6y

3y(3y-2)

Factorise 25a+15ab

5a(5+3b)

Expand and simplify (x+5)(x+3)

x^2+8x+15

Expand and Simplify 6(x+4)+3(4x+2)

18x+30

Expand and simplify (x-4)(x-5)

x^2-9x+20

Factorise 7t+49

7(t+7)

Factorise 18x+24

6(3x+4)

Expand and simplify (x+10)(x+2)

x^2+12x+20

Factorise y^2-4y

y(y-4)

Expand 2(x-2)

2x-4

Expand and simplify 3(x-5)+2(x-6)

5x-27

Expand 3x(x-7)

3x^2-21x