Posted by **India** on Friday, April 20, 2012 at 11:10am.

simultaneous equation

x squared = 4-y

x = y+2

- Mathematics -
**Sam**, Friday, April 20, 2012 at 11:13am
Express 3x squared + 2x + 1 in the form a(x+p)squared + q where a,p and q are real numbers

- Mathematics -
**Reiny**, Friday, April 20, 2012 at 1:02pm
x^2 = 4-y and x = y+2

sub the 2nd into the first

(y+2)^2 = 4-y

y^2 + 4y + 4 = 4-y

y^2 + 5y = 0

y(y+5) = 0

y = 0 or y = -5

if y = 0 , then x = 4-0 = 4

if y = -5 , then x = 4-(-5) = 9

## Answer This Question

## Related Questions

- mathematics - Solve simultaneous... y-2x-1=0 and x squared+xy-5x-y+2=0
- Math - Solve the simultaneous equation x+y=1 x squared + y squared=25
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....
- math simultaneous equation with surds - ive got quite far but im stuck, can you ...
- Mathematics - If (a+b)squared = 361 and ab =-120, calculate the value of a ...
- mathematics for management - helo sir/madam can u help me to solve this problem ...
- Math (College Level Mathematics) - Let c > 0 be a constant. For F E Cp (-C, ...
- Physics - Two events that are simultaneous in one frame of reference will be: A...

More Related Questions