Algebraic Expressions Quiz (8th Grade)

(a + b)² = ?

• (a + b)(a - b)

• a² + b² - 2ab

• (a + b)² - 2ab

• a² + b² + 2ab

A number M is multiplied by 11 and 3 is subtracted from the result. The answer comes as 18 more than a number N. Form the equation

• (4M) - 3 = N - 18

• 11(M - 3) = N + 18

• M + 18 = 11N - 3

• 11M - 3 = 18 + N

Simplify:

4x² - 11y + 3xy + y²

If the values of x and y are 3 and 5 respectively.

• 51

• 121

• 49

• 1024

Identify the coefficient(s) of x in the equation.

23x³y²z

• x³y²z

• 23x²y²z

• 23

• x²y²z

Largest 4 digit number which is a perfect square is 9604.

• True

• False

Identify the ones digit in the following number.

98765432⁴

• 4

• 2

• 36

• 6

a² - b² = ?

• (a + b)(a - b)

• (a - b)(a - b)

• (a + b)(a + b)

• a² + b²

Factorise the following equation with identities.

49x² - 84xy + 144y²

• (7y - 12x)²

• 7x² - 12y²

• (7x - 12y)²

• (49x - 144y)

True or False:

(23x - 32y)(23x + 32y) can be further factorised.

• True

• False

The digit at the ones place in the number:

77777738831⁴⁴⁴

• 1

• 9

• 4

• None of the above

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