x power a-4 × x power a-3 = 1
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[tex] x^{a-4} × x^{a-3} =x^0 [x^0=1]
bases are equal equate the powers
a-4+(a-3)=0 2a-7=0 2a=7 a=3.5[/tex]
bases are equal equate the powers
a-4+(a-3)=0 2a-7=0 2a=7 a=3.5[/tex]
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