Substituting Into Algebraic Expressions

Work out the value the expression when

p = 2, q = -3, r = 4 and s = -5.

pq + rs

Work out the value the expression when

p = 2, q = -3, r = 4 and s = -5.

rs² + pq³

Work out the value the expression when

p = 2, q = -3, r = 4 and s = -5.

10r - 3p³

Work out the value the expression when

e = 3, f = 2, g = -4 and h = -2.

3 (e + f)

Work out the value the expression when e = 3, f = 2, g = -4 and h = -2. 3(e + f) - 5 (e - f)

Work out the value the expression when

e = 3, f = 2, g = -4 and h = -2.

h (2f + g)

Work out the value the expression when

e = 3, f = 2, g = -4 and h = -2.

(ef)/h - g

Evaluate:

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Evaluate:

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What value(s) will make the expression undefined?

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