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# Write √ 128 as a power of 2 ?

128 can also be written as: 128 = 2*2*2*2*2*2*2 (Because both the left hand side and right hand side of equation are equal)-- 1 Since, 2 multiplying with itself 7 times is same as 2^7, we can further write equation 1 as, 128 = 2^7 ----2 Remember: √A = (A)^0.5 = (A)^(1/2)-----3 Applying rule in equation 3 to equation 2, we get: √128 = (2)^(7*0.5) = 2^(7/2) (Note: here A= 128)  ·

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3n + 3

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