Solving by the Best Method

Presentation

•

Mathematics

•

9th Grade

•

Hard

•

CCSS

HSA-REI.B.4B

Standards-aligned

Mikayla Smith

Used 4+ times

FREE Resource

8 Slides • 1 Question

Solving by the Best Method

Algebra I 3.13

WARM UP

Reviewing the Key Features of Each Method

Taking the Square Roots

(ax+c)²=0

ax²+c =0

Missing "b" term
Doesn't have to =0
Get x² or the binomial squares by itself before taking the square root.
Don't forget the +/-

Completing the Square

ax²+bx+c=0

The "b" term is even
Starts with x² or has a GCF
Doesn't need to =0
After factoring, Set both factors =0 and SOLVE for x.

Factoring

ax²+bx+c=0

Must be in standard form and =0
Missing "c" term- GCF Factor
After factoring, Set both factors =0 and Solve for x.

Quadratic Formula

Must be in standard form and =0
Not factorable
ALL QUADRATICS CAN BE SOLVED WITH THE QUADRATIC FORMULA!

Multiple Select

POLL QUESTION: Which methods are you most comfortable with?

Taking the Square Roots

(ax+c)²=0

Completing the Square

ax²+bx+c=0

Factoring

ax²+bx+c=0

Quadratic Formula

ax²+bx+c=0

Any Questions?

From the notes or anything we just reviewed?

Go get started on your Practice!

3.13 Practice on CTLS

Solving by the Best Method

Algebra I 3.13

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