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3a2-ab if a =-4 and b =3

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Answer to a math question 3a2-ab if a =-4 and b =3

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Fred
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110 Answers
1. Substitute \( a = -4 \) and \( b = 3 \) into the expression \( 3a^2 - ab \).

3 \times (-4)^2 - (-4) \times 3

2. Calculate \((-4)^2\).

(-4)^2 = 16

3. Multiply by 3.

3 \times 16 = 48

4. Calculate \(- (-4) \times 3\).

- (-4) \times 3 = 12

5. Subtract the result of step 4 from the result of step 3.

48 + 12 = 60

6. Answer: 60

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