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Math / Algebra / Grade 9 / ml9cl

Use the Zero-Product Rule - Practice 2

If two factors multiply to zero, at least one factor equals zero.

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If two factors multiply to zero, at least one factor equals zero. Find the input that makes each factor zero; do not lose a root by dividing by a variable factor.

Worked example

(x - 2)(x - 5) = 0 has roots 2 and 5. The smaller root is 2.

(x - 2)(x - 5) = 0 has roots 2 and 5. The smaller root is 2.
Worked model: (x - 2)(x - 5) = 0 has roots 2 and 5. The smaller root is 2.
Question 1 What is the smaller root of (x - 2)(x - 6) = 0?
Question 2 What is the smaller root of (x - 3)(x - 7) = 0?
Question 3 What is the smaller root of (x - 4)(x - 8) = 0?
Question 4 What is the smaller root of (x - 5)(x - 9) = 0?
Question 5 What is the smaller root of (x - 6)(x - 10) = 0?