29²+35²+33²+31²-34²-32²-30²-28²=?

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Answer 1 · 2018-03-21T06:05:59

$29^2+35^2+33^2+31^2-34^2-32^2-30^2-28^2 =252$

In order to solve this question, we must first consider the value of each of the square numbers. This is done in the following way:
$(29*29)+(35*35)+(33*33)+(31*31)-(34*34)-(32*32)-(30*30)-(28*28)$
We then carry out the multiplication to solve each for each multiplication. This is done in the following way:
$(841)+(1225)+(1089)+(961)-(1156)-(1024)-(900)-(784)$
We then carry out the addition and subtraction:
$(841)+(1225)+(1089)+(961)-(1156)-(1024)-(900)-(784)=252$