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Substitute x = -3 and y = 5 into the expression 3x2 + 4xy.

Mathematics

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Answer

-33\text{-33}

Step-by-step solution

4 steps

  1. Substitute x=−3x = -3 and y=5y = 5 into the expression 3x2+4xy3x^2 + 4xy.

    3(−3)2+4(−3)(5)3(-3)^2 + 4(-3)(5)

  2. Calculate the square term (−3)2(-3)^2.

    3(9)+4(−3)(5)3(9) + 4(-3)(5)

  3. Perform the multiplications.

    27+(−12)(5)27 + (-12)(5) 27−6027 - 60

  4. Perform the subtraction.

    −33-33
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