PLEASE HELP
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9p^2 - 6 = 642; / + 6 ;
9p^2 = 648; / ÷9 ;
p^2 = 72 ;
p = +
;
Finally, p = +6
or p = -6
9p^2 = 648; / ÷9 ;
p^2 = 72 ;
p = +
Finally, p = +6
Divide -20 by 5 to get -4.
Multiply -4 and -3 to get 12.
Multiply 4 and -2 to get -8.
Multiply -8 and -1 to get 8.
Add 12 and 8 to get 20.
Calculate 4 to the power of 2 and get 16.
Subtract 16 from 20 to get 4.