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Adding and subtracting rational expressions practice
Adding and subtracting rational expressions · 1–12
Add or subtract. Simplify, and state the excluded values.
2.3x − 4 + 4x2 − 10x + 24
4.−5x + 6 − −7x2 + 9x + 18
5.−6x + 6 + −2x2 + 10x + 24
6.−4x − 5 + 5x2 − 2x − 15
8.−4x + 3 − −4x2 + 10x + 21
9.−1x − 5 − −1x2 + x − 30
10.−5x − 5 − 5x2 + 2x − 35
11.−7x − 4 + 1x2 − 5x + 4
12.4x − 5 − 3x2 − 9x + 20
Answer key — Adding and subtracting rational expressions practice
Adding and subtracting rational expressions
1.−x(x − 1)(x − 5); x ≠ 1, 5
2.3x − 14(x − 4)(x − 6); x ≠ 4, 6
3.2x + 11(x − 4)(x + 6); x ≠ −6, 4
4.−5x − 8(x + 6)(x + 3); x ≠ −6, −3
5.−6x − 26(x + 6)(x + 4); x ≠ −6, −4
6.−4x − 7(x − 5)(x + 3); x ≠ −3, 5
7.5x − 17(x − 1)(x − 4); x ≠ 1, 4
8.−4x − 24(x + 3)(x + 7); x ≠ −7, −3
9.−x − 5(x − 5)(x + 6); x ≠ −6, 5
10.−5x − 40(x − 5)(x + 7); x ≠ −7, 5
11.−7x + 8(x − 4)(x − 1); x ≠ 1, 4
12.4x − 19(x − 5)(x − 4); x ≠ 4, 5
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