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Question

Simplify the following:
a) (a8×a5)0
b) (b2)4×b0
c) a3b10c8×bc8(b10×c6)4
d) [a5a10b9c7×(a15×c0)]2

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Solution

a)(a8×a5)0=1[a0=1]

b)(b2)4×b0=b8×b0[(an)m=amn]
=b8×1[a0=1]

c)a3b10c8×bc8(b10×c6)4
=a3b10c8×b1×c8b40×c24[(am)n=amn]
=a3×b11×c16b40×c24[aman=amn]
=a3×b11+40×c1624
=a3×b51×c8
=b51a3c8

d)[a5a10b9c7×(a15×c0)]2
=a10a20×b18×c14×a30×c0
=a10a2030×b18×c14+0
=a10a10×b18×c14
=b18c14

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