- RATIONAL EXPRESSIONS–
523.Compute and simplify: (a–1+ b–1)–1
a.ba+ba
b.ba+ba
c.ab
d.a+ b
524.Compute and simplify:xx–– (^11) +–yy––^11
a. 0
b.yy–+xx
c.yy+–xx
d. 1
525.Compute and simplify:
2
x
x
1
^3
– x
2
+2
a.(xx+^2 – 15 )(xx++^8 2)
b.(xx^2 ++1)^5 (xx++^8 2)
c.(xx+^2 – 1)^5 (xx–+^8 2)
d.–(xx+^2 – 15 )(xx++^8 2)
526.Compute and simplify:xx+–3^5 – xx^1 –3
a.(x+ 5)(x– 1)
b.(x– 5)(x+ 1)
c.–(x– 5)(x+ 1)
d.–(x+ 5)(x+ 1)
527.Compute and simplify: [3 + x+^1 3 ]
a. 3 xx++^310
b.^3 xx+–2^10
c.^3 xx++^130
d.xx+–2^3
528.Compute and simplify: 1 – ^2 x– 23 x– 61 x
a.x+x^2
b.x–x^2
c.3x 3 +x^2
d.3x 3 – x^2
Set 34 (Answers begin on page 207)
This problem set focuses on solving rational equations.
529.Solve:^3 x= 2 + x
a.–3 and 1
b.–3 only
c.1 only
d.There are no solutions.
530.Solve:^23 – ^3 x= ^12
a. 178
b.^178
c.–18
d. 18
531.Solve:t^2 – t 7 + t–^1 1 = 2
a.–2
b. 2
c.^75
d.^57
532.Solve:xx++ 28 + = ^2 x
a.–4
b. 4
c.–4 and –2
d.4 and –2
533.Solve:x–x 3 + ^2 x= x–^3 3
a. 3
b.2 and 3
c.–2
d.–2 and 3
^12
x^2 +2x
x+ 3
x– 2
x^2 +4x–5
2 x^2 +x–3