Solving Quadratics

Solve by factoring: x² - x - 12 = 0

• {3, -4}

• {3, 4}

• {-3, 4}

• {-3, -4}

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

Solve by factoring: n² - 10n = -21

• {-3, -7}

• {3, 7}

• {-3, 7}

• {3, -7}

Solve by factoring: 2a² + 5a + 3 = 0

• {-1, -3/2}

• {1, 3/2}

• {-1, 3/2}

• {1, -3/2}

Solve by factoring: 6x² - 13x = 15

• {3, 5/6}

• {-3, -5/6}

• {-3, 5/6}

• (3, -5/6)

Solve using the quadratic formula.

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Solve using the quadratic formula:

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A polynomial has zeros at x = -9 and x = 5. Write an equation that could represent the function.

• $\left(x-9\right)\left(x-5\right)=0$

• $\left(x+9\right)\left(x+5\right)=0$

• $x^2+14x+45=0$

• $x^2-14x+45$

Given graph, find the factors.

• $\left(x+1\right)\left(x-3\right)$

• $\left(x-1\right)\left(x+3\right)$

• $\left(x-1\right)\left(x-3\right)$

• $\left(x+1\right)\left(x+3\right)$

Given the graph, identify the zeros.

• $\left\{1,\ 3\right\}$

• $\left\{1,\ -3\right\}$

• $\left\{-1,\ -3\right\}$

• $\left\{-1,\ 3\right\}$

Given the graph, find the factors.

• $\left(x+4\right)\left(x-5\right)$

• $\left(x-4\right)\left(x+5\right)$

• $\left(x-4\right)\left(x-5\right)$

• $\left(x+4\right)\left(x+5\right)$