We can’t see the question
Plug in the -1 inside the given equation:
y=2x²-5x+9-78-38-18-1
y=2(-1)²-5(-1)-126= -119
Answer:
how would i know the answer
Step-by-step explanation:
Answer:

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Add up the corresponding elements
Row1,Column1: 6.1+(-7.2) = -1.1
Row1,Column2: 1.9+7.6 = 9.5
Row2,Column1: -7.5+1.8 = -5.7
Row2,Column2: 2.2+(-1.4) = 0.8
Row3,Column1: 3.8+2.3 = 6.1
Row3,Column2: -1.4+2.1 = 0.7
So that's why the answer is
Answer:
7x^2-x-14
Step-by-step explanation: