Question

if A = 3x ²+ 2x-7 and B =7x³-3x+4 then find 2A+3B​

Answer 1

Answer:

21x^3+6x^2-5x-6

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Answer 2

The value of 2A+3B is "21x³+6x²-5x-2".

Step-by-step explanation:

$The \ given \ values \ are:\\A=3x^2+2x-7\\B=7x^3-3x+4\\Now,\\2A=2(3x^2+2x-7)\\2A=6x^2+4x-14\\and,\\3B=3(7x^3-3x+4)\\3B=21x^3-9x+12\\So,\\2A+2B=6x^2+4x-14+21x^3-9x+12\\2A+2B=21x^3+6x^2-5x+2$

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https://brainly.in/question/14151249