4 * (-4) + 9 = -7; so -7 is equivalent to 4 times -4 plus 9.
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9 plus 16=25 3 squared is the same as 3 times three and 4 squared is the same as 4 times 4 3 times 3 + 4 times 4 9 plus 16 = 25
31
the answer is 256 because 2+2 is 4 and 56*9 is 504 divided by 2 is252 plus 4 is 256
10^2 minus 4 times 8 divided by 8 plus 9 is equal to 105.
-42 + 37 - (6 x 9) + (7/4) = -57.25