Quadratic Simultaneous Equations

Question 1:

y=2x2−10x+1 y=2x+10
x=6.67 or -0.674 y=23.34 or 8.652

Question 2:

y=2x2−11x−4 y=3x−1
x=7.21 or -0.208 y=20.63 or -1.624

Question 3:

y=3x2+7x+6 y=x+10
x=0.528 or -2.53 y=10.528 or 7.47

Question 4:

y=x2+7x+8 y=x+2
x=-1.27 or -4.73 y=0.73 or -2.73

Question 5:

y=2x2+12x+9 y=3x+3
x=-0.814 or -3.69 y=0.558 or -8.07

Question 6:

y=3x2−4x+5 y=2x+2
x=1 y=4