Opener Notes Name__________________________________________________

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Presentation transcript:

Opener Notes Name__________________________________________________ Algebra: Factoring Day 4 Opener Fill in the missing signs. 1. 𝑥 2 +6x+8=0 2. 𝑥 2 +2x-8=0 3. 𝑥 2 -2x-8 =0 4. 𝑥 2 -6x+8=0 ( x __ 4) (x __2) ( x __ 4) (x __2) ( x __ 4) (x __2) ( x __ 4) (x __2) Notes Difference of perfect squares. 𝑥 2 - 4 = 0 What should the numbers multiply to? ____________ What should the numbers add to? _____________ What will the signs be? ______________________ Practice 𝑥 2 - 1 = 0 𝑥 2 - 9 = 0 3. 𝑥 2 - 16 = 0 4. 𝑥 2 - 25 = 0 5. 𝑥 2 - 100 = 0 6. 𝑥 2 - 49 = 0 7. 𝑥 2 - 64 = 0 8. 𝑥 2 - 81= 0

MAKE SURE ROOTS MATCH UP!! Practice – Find the roots of the following Steps Find the numbers that multiply to the number without the x Pick the two numbers that add to the number with the x T it up Solve to find your roots Example: 𝑥 2 + 6x − 16 = 0 5. 𝑥 2 +6x-27= 0 6. 𝑥 2 -5x-14 = 0 7. 𝑥 2 -8x+12= 0 8. 𝑥 2 -36= 0 𝑥 2 -2x-15= 0 2. 𝑥 2 +11x+18 = 0 3. 𝑥 2 -10x+24= 0 4. 𝑥 2 +5x-24= 0