Solving Quadratics

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

Solve
a² + 2a - 24 = 0

• a = -6, 4

• a = 6, -4

• a = 12, -2

• a = 8, -3

Solve
x² + 9x + 20 = 0

• x = -2, x = -10

• x = -3, x = -4

• x = -4, x = -5

• x = -4, x = -6

Solve
x² + 7x + 12 = 0

• x = -2, x = -10

• x = -3, x = -4

• x = -4, x = -5

• x = -4, x = -6

Factor
r² -16r + 60

• (r - 15)(r + 4)

• (r - 6)(r + 10)

• (r - 6)(r - 10)

• (r +30)(r - 2)

Factor
x²+12x+35

• (x+5)(x+7)

• (x+4)(x+3)

• (x+7)(x-5)

• Prime

Factor
x² + 4x + 3

• (x - 1)(x - 3)

• (x + 1)(x + 3)

• (x - 1)(x + 3)

• (x + 1)(x - 3)

Factor
k²+7k+10

• (k+2)(k+5)

• (k-2)(k-5)

• (k+10)(k+4)

• (k+2)(k-5)

Factor
k² -2k - 24

• (k+4)(k-6)

• (k+4)(k+6)

• (k+6)(k-1)

• (k-4)(k+6)

Factor: 
x² + 7x + 6

• (x + 6) (x + 1)

• (x + 3) (x + 2)

• (x + 4) ( x + 3)

• (x - 6) ( x -1)