June 2, 2014

Today:

Final Exam Review Rational Expressions Review Adding/Subtracting Rational

Expressions Class Work

Khan Academy Due Tomorrow for Everyone

June 2, 2014

The specs for Samsung’s latest, yet to be released phone, were leaked online Saturday. Based on the specs, what will the screen size be? 1” = 25 mm.

8.57”≈ 8” in.

Final Exam Review: (June 11th )

Write the equation for and graph the line perpendicular to the line shown and passing through the points (0,1) and (-2,0)



Simplifying Rational Expressions & Multiplying/Dividing

Simplify; Excludify

Adding and Subtracting Rational Expressions

with like Denominators


with like Denominators

=

=


with unlike Denominators=

The LCD is the product of each unique (different)

factor4 = 2•2 6 = 2•3

1. Find the LCD of the denominators

The LCD is 12

2. Multiply each fraction (top & bottom) by the LCD.

𝟑 𝟐

=

LCD=6x=


with unlike Denominators



The LCD of 5x and is 5

95𝑥−2

𝑥2

95𝑥∙𝒙𝒙−2

𝑥2∙𝟓𝟓

=

=

1. Find the LCD of the denominators

2. Multiply each fraction by the remaining factors of the LCD

3. Perform the addition or subtraction

Find the LCD

= 6x2

= 10m5

= 12y4

= 4x6

3y3 4y4

10m2 5m54x6 2x6

3x2 2x2



t + 4 4t + 16 4t + 16 2r - 1 r + 4 (2r – 1)(r + 4)

Find the LCD, Then solve:

=LCD= 6

LCD = 12y4 (4y)7 (3)5 (4y)3y3 (3)4y4

= 28y 15 12y4 12y4 =

+4 276x2 6x2

2 93x2 2x2

+ (2)2 (3)9 (2)3x2 (3)2x2= +

7 5 3y3 4y4



Simplify:𝟒

𝒚+𝟓+

𝟔𝒚 −𝟐 ¿ 𝟒

𝒚+𝟓∙

( 𝒚−𝟐 )( 𝒚−𝟐 )

+ 𝟔𝒚 −𝟐

∙(𝒚+𝟓)(𝒚+𝟓)

LCD=

𝟒(𝒚−𝟐)(𝒚+𝟓)(𝒚−𝟐)

+𝟔 (𝒚+𝟓)

(𝒚+𝟓)(𝒚−𝟐)

¿𝟒 𝒚−𝟖

(𝒚+𝟓)(𝒚−𝟐)+

𝟔𝒚+𝟑𝟎(𝒚+𝟓)(𝒚 −𝟐)

¿𝟒 𝒚 −𝟖+𝟔 𝒚+𝟑𝟎(𝒚+𝟓)(𝒚 −𝟐)

¿𝟏𝟎𝒚+𝟐𝟐

(𝒚+𝟓)(𝒚−𝟐)



Documents

June 2, 2014