Solve the following system of equations and show all work.

y = −x^2 + 4
y = 2x + 1

Question

Solve the following system of equations and show all work.

y = −x^2 + 4
y = 2x + 1

anonymous · Answer

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

haseeb96 · Answer

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

anonymous · Answer

2x+1=x^2+4

haseeb96 · Answer

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 ?

haseeb96 · Answer

do you know how to do factorization?

anonymous · Answer

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

anonymous · Answer

thx lots

haseeb96 · Answer

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

nincompoop · Answer

so how is the x^2 confusing?

nincompoop · Answer

|dw:1436145361053:dw|