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Question 11
a.

Simplify 6m7×5m−56m^7 \times 5m^{-5}6m7×5m−5

[1]
b.

Simplify (3a3b4)4(3a^3b^4)^4(3a3b4)4

[2]
c.

x3×x9=x15×xyx^3 \times x^9 = x^{15} \times x^yx3×x9=x15×xy

Find the value of yyy

[2]

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