Suppose and . Find .

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Suppose and . Find .

Guest Nov 11, 2014

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Best Answer

+130511

+5

Suppose and . Find

b(3) = 2 - (3)³ = 2 - 27 = -25

So.... a(b(3) = a(-25) = 3(-25) - 7 = -75 - 7 = -82

And a(3) = 3(3) - 7 = 9 - 7 = 2

So b(a(3)) = b(2) = 2 - (2)³ = 2 - 8 = -6

Therefore...... a(b(3) - b(a(3)) = -82 - (-6) = -82 + 6 = -76

CPhill Nov 11, 2014

1⁺⁰ Answers

+130511

+5

Best Answer

Suppose and . Find

b(3) = 2 - (3)³ = 2 - 27 = -25

So.... a(b(3) = a(-25) = 3(-25) - 7 = -75 - 7 = -82

And a(3) = 3(3) - 7 = 9 - 7 = 2

So b(a(3)) = b(2) = 2 - (2)³ = 2 - 8 = -6

Therefore...... a(b(3) - b(a(3)) = -82 - (-6) = -82 + 6 = -76

CPhill Nov 11, 2014

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