Simplify: #(12−5^2-:5)*4^2-:2^3+2^2−1+[(2^4-:2^3)^3+4^3-:4+2^5]-:7#?

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Answer 1 · 2016-05-02T12:39:12

#(12-5^2-:5)*4^2-:2^3+2^2-1+[(2^4-:2^3)^3+4^3-:4+2^5]-:7=25#

#(12-5^2-:5)*4^2-:2^3+2^2-1+[(2^4-:2^3)^3+4^3-:4+2^5]-:7#

= #(12-25-:5)*4^2-:2^3+2^2-1+[(2)^3+4^2+2^5]-:7#

= #(12-5)*(2^2)^2-:2^3+2^2-1+[8+16+32]-:7#

= #7*2^4-:2^3+2^2-1+56-:7#

= #7*2+4-1+8#

= #14+4-1+8#

= #25#