Question

8) Draw the graph of y=(x - 1) (x+3) and
hence solve
x² - x– 6=0.​

Answer 1

Step-by-step explanation:

$x {}^{2} - x - 6 = 0$

$x {}^{2} - (3 - 2)x - 6 = 0$

$x {}^{2} - 3x + 2x - 6 = 0$

$x( x - 3) + 2(x - 3)$

$(x + 2)(x - 3)$

$x = - 2$

$x = 3$