Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter6: Polynomials
Section6.4: Special Products
Problem 353E: Why does (a+b)2result in a trinomial. but (a+b)(ab)result in a binomial?
Related questions
Question
Solve this problem the same way I did for similar one in the next image
Transcribed Image Text:3
EF 5 (7
3
XH3
X+5
-B
2
²78 × 15
Transcribed Image Text:5)
3.
Solve.
LCD
.
Tx
2
x²-ax
2
x(x-2)
for
+
(x+2)(x-2)
LCD: x(x-2)(x+2)
2(x+2) -4(x)
2x + 4
4
x²-4² = 4 - 2x
Xx²+2x - 8 =O
√x + 4)(x - 2) =0
+
X=-4
-4
X²-4
-
- 4x
T
2x
(X=25
=
reject
=
J. GLED
x
215dm3/
x²-4
= x²-4
(x+2) (x-2)
2
4 -2x = x² - 4
0 = x² + 2x-8
(same)
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