Factor the expression 2z24z6 Factor the expression x236 Find

Factor the expression 2z²+4z-6.

Factor the expression x²-36.

Find the zeros of y = 11x² + 48x + 16.

Solution

2z² + 4z - 6

= 2z² + 6z - 2z - 6

= 2z(z+3) -2(z+3)

= (z+3)(2z-2)

2 . x² - 36 = x² - 6 ² = (x-6)(x+6)

3. y = 11x² + 48x + 16

y = 11x² + 44x + 4x + 16

y = 11x(x+4) + 4 (x+4)

y = (x+4) (11x+4)

x = -4

x= -4/11