Page 261 - Algebra 1

Lesson Practice
Simplify each expression.
2 2 7q _r_r _3
a. q( + 3w)
(Ex 1) q
__
b.z( -2ty)
t uay
32
(Ex 2) tq
Math Reasoning
Generalize For problem f, which variable in the numerator cannot equal zero? Explain.
(Ex 3)
d.
(Ex 3)
n-2 v-2cb __
-3 )
e.
(Ex4)
f.
(Ex 4)
g.
(Ex 5)
+ 2sk -
zx zd-2x 2
j-2 j-3 9m3 ___
-2 mk
6
c.m( +
)
5 z(nv -4nb
-1
__ _7
fs fhs
)
(
d4 d
d
___ w-2 +5tz-w
)
(w -4
Painting Arectangularcanvasistobepainted.Theareaofthecanvas
z (y Distributed and Integrated
y t
_t-3 _z-4 _t2y with length (y + y t and width
-2 5 __t _z
t2y -3 + -4 -2 5
)z )
is represented by the expression . Simplify the expression.
Practice
Solve each equation. Check your answer. 1. 4(y+_3)=-18
2. x-4+2x=14 (26)
(26) 2
3. True or False: The set of integers is closed under division. If false, give a
(1) counterexample.
Translate words into algebraic expressions.
4.
(17)
6.
(17)
*8.
(39)
*9.
(39)
*10.
(39)
*11.
(39)
thesumof aand3 3lessthanx
_2_2 _3 Simplify d (d + 9s ).
5. 2.5morethank (17)
7. 2morethantheproductof 3andy (17)
246
Saxon Algebra 1
s2 s h
Write Why isn’t division by zero allowed?
Multiple Choice Simplify b2
( b-1 + b3 ).
x-2 _
-4 -3
Justify Simplify n-1 (2x + n ) and explain each step.
g-2s g-3s-1
_ _ _4
4g-5s-1 g-5s-1 4g-2s _ __
A b4 B b + b5
g-5 4g-2s
__ _1_
4s C b + b5 D bg5 + b5g2