hpandeya hpandeya

31-05-2021
Mathematics

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If a = (x-3) and b = (x+3), show that 2ab = 2x square - 18

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Аноним Аноним

31-05-2021

Step-by-step explanation:

ab = (x - 3)(x + 3)

multiply

ab = x² + 3x - 3x - 9

Simplify

ab = x² - 9

---------------------------

2ab = 2(x² - 9)

Distribute

2ab = 2x² - 18

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