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Simplifying Expressions – Part 1 ANSWERS
1.
(a) 15x
(b) 9y
(c) 4x
(d) -2ab
(e) 5x – 1
(f) 9x – 5
(g) 6
(h) 2x + 5
(i) 3x – 5
(j) a3 + 6a
(k) **
(l) 3x + 2y – 3
(m) **
(n) **
(o) -6mn
(p) **
(q) 10a2 -3a
(r) 8a + 4ab
(s) 0
(t) -6a + 4b
(c) a
(d) -3m +mn
(g) 3a – 7a2
(h)12
** can’t be simplified
2.
(a) 10x
(b) 3y
(e) -2ab+2a+4b (f) 2mn
(i) x2 + 3xy – y
(k) -11m + 5n
Simplifying Expressions – Part 2 ANSWERS
(1) 8x + 21
(2) 12x + 23
(3) -5a + 2
(4) -16a – 43
(5) -5n2 + 11
(6) 5n2 + 5
(7) -7x + 32
(8) x + 5y
(9) 22x – 3
(10) 27x + 13
(11) -14x – 7
(12) -15x – 2
(13) -10n + 4
(14) -6n + 2
(15) 4x – 30y
(16) 13x + 30y
17. (a) -72
(b) 89
(c) -14
(d) -3/10 (e) 102/25
(f) 300/45 = 20/3
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