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31-03-2021
Mathematics

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Solve a quadratic equation by factoring j2–30j=0

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NgShiYin NgShiYin

31-03-2021

Answer:

j = 0 or j = 30

Step-by-step explanation:

j² - 30j = 0

Factorise j out of both terms on the left side.

j (j-30) = 0

Apply zero product rule.

j = 0 or j-30 = 0

Find the value of j.

j = 0 or j = 30

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