Question

Solve the simultaneous equation. y=x2−3x+4 y=1+x

Answer 1

x = 3 , 1

y = 2 , 4

Explanation:

y = x² - 3x + 4

→ 1 + x = x² - 3x + 4

y = 1 + x 0 = x² - 3x - x + 4 - 1

0 = x² - 4x + 3

0 = ( x - 3)( x - 1)

x = 3 , x = 1

y = 1 + 1 = 2

y = 1 + 3 = 4