Find the value of K:
7 raised to the power (-3) × 7 raised to the power (3K+2) = 7 raised to the power (15) ÷ 7 raised to the power (8)
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7(-3) *7(3k+2)=7(15)/7(8)
1/7(3)*7(3k+2)=7 (15-8)
7(3k+2)/7(3)=7(7)
7(3k+2-3)=7(7)
on comparing the powers:
3k-1 = 7
3k = 7+1
3k =8
k=8/3
k=2.7
the numbers in brackets are the powers
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