Working with Algebra Review

If p = 4, q = 2, r = -5, find the value of 4p - 3r

If s = 1, t = 4 and u = -1, find the value of 2s + 3t + 4u

Simplify the algebraic expression 12xy⁸ ÷ 4y⁵

• 3y³

• 3xy³

• 3xy

• 8xy³

• 2xy²

• 2y

• 2x²y

• 2y²

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

• 7x + 13

• 7x + 8

• 7x + 16

• 7x + 6

Expand and simplify 5(2x + 2) - 2(5x - 1)

• 12

• 20x + 12

• 8

• 20x + 8

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

• 2x² + 7x - 15

• 2x² + 13x - 15

• 2x² - 7x - 15

• 2x² + 13x + 15

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

• x³ + 10x² - 11x - 30

• x³ + 4x² + 11x - 30

• x³ + 4x² - 11x - 30

• x³ + 10x² - 11x + 30

Factorize the following expression x² + 10x + 21

• (x - 3)(x + 7)

• (x + 3)(x - 7)

• (x - 3)(x - 7)

• (x + 3)(x + 7)

Factorize the following expression 2x² - 9x + 4

• (2x - 1)(x + 4)

• (2x - 1)(x - 4)

• (x - 1)(2x - 4)

• (2x + 1)(x - 4)