MII Final Version 1

Determine the zeros.

f(x) = k² - 49

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Solve using the best method

f(x) = x² + 13x + 12

• x = -12, -1

• x = 12, 1

• x = 13, 1

• x = -13, -1

Solve using the best method.

f(x) = x² +12x - 5

• X = 6 + √41 or 6 − √41

• X= 35 or 47

• X = −6 + √41 or −6 − √41

• X = √35 or √47

Solve using the quadratic formula:

f(x) = 4x² + 4x - 1

• x = -½, ½

• x = -2, 2

• x = 0.56, -1.56

• x = 0.207, -1.207

Factor 2x² + 3x - 9

• (x+6)(x-3)

• (2x+6)(x-3)

• (2x-3)(x+3)

• (2x-6)(x+3)

Factor

6x⁴y³ - 12x⁴y² + 6x³y²

• 6(x⁴y³ - 2x⁴y² + x³y²)

• 6xy(x³y² - 2x³y + 6x²y)

• 6x⁹y⁶

• 6x³y²(xy - 2x + 1)