Factor Trinomial When A = 1

How do you factor a trinomial when the coefficient of x² is 1? (ex: x² - 2x + 10)

• Take out the GCf then you're done

• Difference of two squares 

• Find what multiplies to the last number and adds to the middle

• Slip & Slide

Factor completely.

x² + 17x + 72

• ( x + 9 ) ( x - 8 )

• ( x - 9 ) ( x + 8 )

• ( x + 9 ) ( x + 8 )

• ( x - 9 ) ( x - 8 )

Factor completely.

x² - 11x + 24

• ( x - 3 ) ( x - 8 )

• ( x - 4 ) ( x - 6 )

• ( x + 3 ) ( x - 8 )

• ( x - 3 ) ( x + 8 )

Factor completely.

x² - 12x + 27

• ( x + 3 ) ( x - 9 )

• ( x - 3 ) ( x - 9 )

• ( x - 3 ) ( x + 9 )

• ( x + 3 ) ( x + 9 )

• (x + 5)(x + 5)

• (x + 25)(x + 1)

• (x - 5)(x - 5)

• (x + 5)(x - 5)

Tags

CCSS.HSA.APR.C.4

(x - 3)(x + 4)

• (x - 3)(x + 4)

• (x - 2)(x + 6)

• (x +3)(x - 4)

• (x - 6 )(x + 2)

(x - 3)(x + 4)

• (x - 3)(x + 4)

• (x - 2)(x + 6)

• (x +3)(x - 4)

• (x - 6 )(x + 2)

• (x - 7)(x + 4)

• (x - 4)(x - 7)

• (x - 4)(x + 7)

• (x + 4)(x + 7)

• (x - 12)(x - 3)

• (x + 3)(x + 12)

• (x + 12)(x - 3)

• (x + 3)(x - 12)

Factor completely.

x² + 3x - 40

• ( x - 4 ) ( x + 10 )

• ( x - 8 ) ( x - 5 )

• ( x + 8 ) ( x - 5 )

• ( x - 8 ) ( x + 5 )