Question

найдите значение выражения

Answer 1

1) (a-1)^2; a=101, 100^2=10000; a=-9; -10^2=100;
a=31; 30^2=900; a=0,4; -0,6^2=0,36;
2) (x+2)^2; x=98; 100^2=10000; x=-32; -30^2=900;x=-2,5; -0,5^2=0,25