Answer:
2x2-12x+3
Step-by-step explanation:
(x2-7x+4)-(-x2+5x+1)
x2-7x+4+x2-5x-1
2x2-12x+3
Let's factorise and use the difference of two squares (D.O.T.S):
![\frac{5(x-2)}{(x+2)(x-2)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%28x-2%29%7D%7B%28x%2B2%29%28x-2%29%7D%20)
the (x-2) in the numerator and denominator cancel out so we are left with:
![\frac{5}{x+2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7Bx%2B2%7D%20)
So the answer is B
Answer:
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Always a
Please answer some of my questions too !