Question

RESOLVA:
a)1²+7⁴-(9×9⁴-3³÷5)-4=
 b)3¹-7×7⁴{(70¹+9³×7÷3)}+5³-4=

Answer 1

a)
= 1²+7⁴- (9×9⁴ - 3³ ÷5) - 4
= 1 + 2401 - (72171 - 27:5) - 4
= 2402 - (72171 - 5,4) - 4
= 2402 - (72165,6) - 4
= 2402 - 72165,60 - 4
= 2398 - 72165,60
= - 69767,60

b)
= 3¹-7×7⁴.{(70¹+9³×7÷3)}+5³-4
= 3 - 16807.[(70+729.7:3)]+125-4
= 3 - 16807.[70+5103 : 3] + 121
= 3 - 16807.[70+1701] + 121
= 3 - 16807.1771 + 121
= 124 - 1178191
= - 1178067