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monitta
3 years ago
6

Please tell me the answer to this question. Give a step by step explanation as well.

Mathematics
2 answers:
LenaWriter [7]3 years ago
4 0

Answer:

15d^2 +7d-4

Step-by-step explanation:

(5d+4)(3d-1)

FOIL

first 5d*3d = 15d^2

outer 5d(-1) = -5d

inner 4*3d = 12d

last 4*-1 = -4

Add together

15d^2 -5d+12d -4

15d^2 +7d-4

rewona [7]3 years ago
4 0

\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}

  • \sf{(5d+4)(3d-1)   }

  • \sf{ 5d(3d-1)+4(3d-1)  }

  • \sf{15d^2-5d+12d-4  }

  • \sf{15d^2+(-5+12)d-4   }

  • \sf{ 15d^2+7d-4  }

\sf{   } \sf{   } \sf{   } \sf{   }

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