Algebra 2 4.5, 4.8 Review

Presentation

•

Mathematics

•

11th Grade

•

Hard

•

CCSS

HSA-REI.B.4B, HSN.CN.A.2, HSN.CN.C.8

Standards-aligned

Kimberly Brightmore

Used 7+ times

FREE Resource

5 Slides • 15 Questions

Algebra 2 4.5, 4.8 Review

Simplifying Square Roots

Fill in the Blanks

Simplify $\sqrt[]{162}$ . Use v to represent the square root symbol. No spaces.

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Fill in the Blanks

Simplify $\sqrt[]{-100}$ . Use v to represent the square root symbol. No spaces.

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Fill in the Blanks

Simplify $\sqrt[]{-32}$ . Use v to represent the square root symbol. No spaces.

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Simplifying Complex Number Expressions

Fill in the Blanks

Simplify $\left(6i\right)\left(-3i\right)$ .

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Fill in the Blanks

Simplify $\left(4-6i\right)-\left(2i+5\right)$ . Type your answer with NO SPACES.

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Fill in the Blanks

Simplify $\left(3-2i\right)\left(4+7i\right)$ . Type your answer with NO SPACES.

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Conjugates

No i's can be left in the denominator.

Use the conjugate to eliminate the i in the denominator.

The conjugate is the expression with the same terms but a different sign.

Fill in the Blanks

Simplify $\frac{2+6i}{4-8i}$ . Type your answer with NO SPACES. Use / for fraction bars.

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Solving by Factoring and Square Roots

Factoring can be used when you have an x term.

Square root can be used when you DO NOT have an x term.

Multiple Choice

How would you solve this problem?

$6x^2-13x=5$

Square Root method

Factoring Method

Multiple Choice

Solve this problem.

$6x^2-13x=5$

$x=-\frac{1}{3},\ \frac{5}{2}$

$x=\frac{1}{3},\ -\frac{5}{2}$

$x=-2,\ 15$

none of these

Multiple Choice

How would you solve this problem?

$64x^2=49$

Square Root method

Factoring Method

Multiple Choice

Solve this problem.

$64x^2=49$

$x=\frac{7}{8}$

$x=\pm\frac{7}{8}$

$x=\pm\frac{8}{7}$

$x=\pm\frac{49}{64}$

Multiple Choice

How would you solve this problem?

$3x^2+36=0$

Square Root method

Factoring Method

Multiple Choice

Solve this problem.

$3x^2+36=0$

$x=\pm12$

$x=\pm12i$

$x=\pm2i\sqrt[]{3}$

$x=\pm4i\sqrt[]{3}$

Multiple Choice

How would you solve this problem?

$10x^2-35x=0$

Square Root method

Factoring Method

Multiple Choice

Solve this problem.

$10x^2-35x=0$

$x=\pm5$

$x=\pm\frac{7}{2}$

$x=0,\ \frac{7}{2}$

$x=0,\ \frac{5}{2}$

Algebra 2 4.5, 4.8 Review

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