Question

Solve the following system of equations and show all work.

y = −x^2 + 4
y = 2x + 1

Answer 1

i know how to solve a normal system of equations but the squared x is confusing me

Answer 2

consider equation 1 as eq#1
and equation 2 a eq#2
y= -x^2+4 .............eq#1
y=2x+1...................eq#2
now just pput this eq#2 into eq#1 at the place of y

Answer 3

2x+1=x^2+4

Answer 4

no
2x+1 = -x^2+4
x^2+2x-3 =0
now factorize this equation and tell me what you get the value of x ?

Answer 5

do you know how to do factorization?

Answer 6

oohh yes of course
you'd get x=-3,1

Answer 7

thx lots

Answer 8

sorry i was wrong
@gold.shosho you were correct
now plug this x values one by one in eq#2 and get the values of y

Answer 9

so how is the x^2 confusing?