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stepan [7]
3 years ago
11

Please help me with this !

Mathematics
1 answer:
baherus [9]3 years ago
6 0

M-N is M-N=2x^2+11x-9

Option B is correct.

Step-by-step explanation:

If M=5x^2+7x-4 and N=3x^2-4x+5 then find M-N

We need to subtract N from M

We will combine like terms (terms having same variable and exponent) and then solve them:

M=5x^2+7x-4

N=3x^2-4x+5

M-N=5x^2+7x-4-(3x^2-4x+5)\\M-N=5x^2+7x-4-3x^2+4x-5\\Combining\,\,like\,\,terms:\\M-N=5x^2-3x^2+7x+4x-4-5\\M-N=2x^2+11x-9

So, M-N is M-N=2x^2+11x-9

Option B is correct.

Keywords: Solving Polynomials

Learn more about Solving Polynomials at:

  • brainly.com/question/11207748
  • brainly.com/question/1332667
  • brainly.com/question/1357167

#learnwithBrainly

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