Question

What is the solution of the system of equations?

y=6x^2+ 3x – 11
y= 3x - 5
A. (x,y) = (-2,1) and (x,y) =(-8,-1)
B. (x,y) = (1,-1)
C. (x,y) =(-1,-8)
D. (x,y) = (1,-2) and (x,y) =(-1,-8)

Answer 1

We can use the FOIL method to expand these two binomials. FOIL stands for First, Outer, Inner, Last. F: The First means that we multiply the first terms of each binomial together. In this case, that would be x · y = xy. O: The Outer means that we multiply the outer terms, or the first term of the first binomial and the second term of the last binomial, together. In this case, that would be x · 8 = 8x. I: The Inner means that we multiply the inner terms, or the second term of the first binomial and the first term of the second binomial, together. In this case, that would be (-1) · y = -y. L: The Last means that we multiply the last terms of each binomial together. In this case, that would be (-1) · 8 = -8. Adding all of these together, we get xy + 8x - y - 8 as our final answer.

Explanation:

Answer 2

b

Explanation: