# Algebra 1 MCQs - Math Test 2

MCQ. Expand and simplfy (x - y)(x + y)

- x
^{2}- 2xy + y^{2} - x
^{2}+ 2xy + y^{2} - x
^{2}- y^{2} - x
^{2}+ y^{2}

C

MCQ. (a - b)^{2} =

- a
^{2}- 2ab + b^{2} - a
^{2}+ 2ab + b^{2} - a
^{2}- b^{2} - a
^{2}+ b^{2}

A

MCQ. Factorise x^{2} + x - 72

- (x - ?72)(x + ?72)
- (x - ?72)
^{2} - (x - 8)(x + 9)
- (x + 8)(x - 9)

C

MCQ. Factorise -20x^{2} - 9x + 20

- (5 + 4x)(4 - 5x)
- (5 - 4x)(4 - 5x)
- (5 - 4x)(4 + 5x)
- (5 + 4x)(4 + 5x)

A

MCQ. Expand and simplify (x + y)^{3}

- x
^{3}+ 3xy(x - y) + y^{3} - x
^{3}+ 3xy(x + y) + y^{3} - x
^{3}+ y^{3} - x
^{3}- y^{3}

B