Question

Cacule as expressões numéricas: (-9) elevado à quadrado e (+5) .(+16)?

Answer 1

) (-9)² - (+ 80)= +81 -80= +1

b) (-2)⁴ : (+16).(-1)^7= (+16) : (+16).(-1)= (+16):(-16)= - 1

c) (-6)² - (-7)² +13°= +36 -(+49)+1= -36 -49+1= -85+1= -84

d) 5² - (-3)°+ (-4)²= 25 -(+1) +(+16)= 25-1+16=24+16= 40

e) 4.(-5)³ +(-20)²= 4.(- 125) +(+400)= - 500+400= -100

f)11²-4.(-5)²+10°= 121 -4 .(+25)+1= 121 - 100+1= 21+1=22

g) 7.(-2)²-5 .(-2)³-10²= 7 .(+4) -5 .(-8) - 100=

+28 +40 -100= 68-100=-32