Question

What is the solution to the following system of equations?
y = −x2 − 5x − 4
y = −x2 + 9x − 18

Answer 1

@mathstudent55

Answer 2

substitute the equations into each other
−x2 − 5x − 4 =−x2 + 9x − 18
solve for x

Answer 3

*I got a answer that wasn't listed

Answer 4

I suggest you factor both of them first.

Answer 5

whats your answer

Answer 6

i got like 3.5 haha

Answer 7

x =1

Answer 8

Or try to graph them both on a graphing calculator or on an online graphing tool this will show you the overlap, which is the solution.

Answer 9

my method is easy and fast

Answer 10

BTW you should be getting x =1

Answer 11

i don't know what happened the first time. I just got x=1. thanks

Answer 12

good