3. Expand and/or simplify each of the following
expressions.
(a) 3ab – 5xy + 4ab+ 2yx
(b) 4(3p -- 5q) + 6(29 - 5p)
(c) 2a + 3[a-(b-a)] + 7(2b-a)
(d) -2[3x – (4x - 5y) - 2(3x – 4y)]
(e) 4{h-3[f-6(f-h)]}
(f) 5(x + 5y) - {2x – [3x – 3(x – 2y) + y]}
Answers
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Step-by-step explanation:
a) 3ab+4ab - 5xy + 2yx
= 7ab - 3xy
b) 4 × 3p - 4 × 5q + 6 × 29 - 6 × 5p
= 12p - 20q + 234 - 30p
= - 18p - 20q + 234
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