Question

find the following product (0.1a-0.3b)(0.1a+0.3b)
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Answer 1

Answer:

0.01a^2 + 0.09b^2

Step-by-step explanation:

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Answer 2

Answer:

0.01a² - 0.09b²

Step-by-step explanation:

a² - b² = (a - b)(a + b)

(0.1a - 0.3b)(0.1a + 0.3b) = (0.1a)² - (0.3b)² = 0.01a² - 0.09b²