Question

ALGEBRA 2
----------------------------------------***WILL BECOME FAN AND GIVE MEDAL***
Solve the following system of equations and show all work.
y = −x2 + 4
y = 2x + 1

Answer 1

-x squared?

Answer 2

yeah

Answer 3

oh.

Answer 4

substitute.

Answer 5

just need the steps

Answer 6

replace the bottem equations with Y on the top equation.

Answer 7

add X^2 and subtract 4 from both sides to get X^2+2x-3

Answer 8

alright got that

Answer 9

the simplify to get (X-1)(X+3)

Answer 10

X can be either 1 or -3.

Answer 11

now, sub it in.

Answer 12

x^2 + 3x -x -3

Answer 13

yup

Answer 14

you got it.

Answer 15

so that's the answer?

Answer 16

no.

Answer 17

simplify it to (X-1)(X+3)

Answer 18

then, for (X-1)(X+3)=0, X could be 1 or negative 3.

Answer 19

x^2 + 3x -x - 3
x^2 + 2x -3

Answer 20

sub it in so Y=2X+1, X=1, Y=3. (1,3) when X=-3 Y=5 so (-3,5)

Answer 21

nononono

Answer 22

don't multiply both of them.

Answer 23

make separate equations like X-1=0 and X+3=0

Answer 24

then, look up to see the rest.

Answer 25

I'm 13 XD

Answer 26

nice

Answer 27

well, get it?