Solving Quadratics by Factoring and Quadratic Formula

• -2
• 2

• 2x

• 3

Organize these options into the right categories

Groups:

(a) Factorable

,

(b) Non-Factorable

Answer explanation

Quadratics are factorable when the quadratics cross at integer values ("nice numbers"). To check if these quadratics are factorable, write the factors of the constant (C) term and see if factors add to the middle (B) term.

What is the equation of this parabola in its factored form?

• y=(x+1)(x+3)

• y=(x-1)(x-3)

• y=-(x+1)(x+3)

• y=-(x-1)(x-3)

Solve the following equation for x:
(x - 4)(x + 5) = 0

• x = 4 and x = −5
• x = −4 and x = 5
• x = 4
• x = −5

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter 

• a=0, b=5, c=7
• a=1, b=5, c=7
• a=7, b=5, c=1