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7. If A = 2x + 3 and B = x^2 - 5x + 1, what is the value of A-5B?​

7. If A = 2x + 3 and B = x^2 - 5x + 1, what is the value of A-5B?​-example-1

1 Answer

6 votes

Answer:


\huge \boxed{ \boxed{ \tt - 5 {x}^(2) + 27 x- 2}}

Explanation:

to understand this

you need to know about:

  • algebra
  • PEMDAS

given:

  • A=2x+3
  • B=x²-5x+1

to find:

  • A-5B

let's solve:


step - 1 : define

A-5B=2x+3-5(x²-5x+1)


step - 2 : solve

  1. distribute -5 to the parentheses:2x+3-5x²+25x-5
  2. rewrite:-5x²+2x+25x-5+3
  3. combine like terms:-5x²+27x-2

and

we are done

User MBlanc
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