a)-2-13+(-14)-19
= - 48
b) 221+4[(-5).8-4]
=221+4(-40-4)
=221+4(-44)
=221-176
=45
c)\(\left(-2\right)^3.\left(-2\right)^2+32\)
=\(-8\cdot4+32\)
\(=-32+32=0\)
d) \(-15\cdot12-8\cdot\left(-12\right)\)
\(=15\cdot\left(-12\right)-8\cdot\left(-12\right)\)
\(=\left(-12\right)\left(15-8\right)\)
\(=\left(-12\right)\cdot7\)
\(=-84\)
a) -2 - 13 + (-14) - 19 = -48
b) 221 + 4\([\left(-5\right).8-4]\)= 45
c) (-2)3.(-2)2 + 32 = (-2)5 + 32 = -32 + 32 = 0
d) -15.12 - 8.(-12) = 15.(-12) - 8.(-12)
= (-12).(15 - 8)
= (-12).7 = -84
~ Học tốt ~