If 2n-7 x 5n-4 = 1250, find the value of n.
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With exponential equations, one approach is to make the bases on both sides the same.
2n−7×5n−4=1250
2n−7×5n−4=2×54
Now we can compare the indices of like bases.
n−7=1 →n=8
n−4=4 →n=8
Do not be tempted to multiply the 2and5!
The indices are different so you may not.
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