Question

if qx+2 = 720 +90 x.find the value of 4x1\x




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Answer 1

Answer:

9x+2=720+9x

9x×92=720+9x

9x×92−9x=720

9x(92−1)=720

9x×80=720

9x=91

As the bases are same, equating the powers

∴x=1

Therefore,

(4x)1/x=(4×1)=4