Question

resolva as expressões ​

Answer 1

Resposta e Explicação passo a passo:

$a) 4(5)+7(3)=20+21=41\\\\b)5^{2}-3(3)+6(5)=25-9+30=46\\\\c)6(5)(3)+3(5^{2})-5(3)=6(15)+3(25)-15=90+75-15=150\\\\d)\frac{7(5)+9(5)}{8(5)+3^{2} }=\frac{35+45}{40+9}=\frac{80}{49}\\\\e)\frac{2(5^{2})+6(6^{3})}{2(5^{2})+6(6^{3})}=\frac{2(25)+6(216)}{2(25)+6(216)}=\frac{50+1296}{50+1296}=\frac{1346}{1346}=1\\\\f)15(5)-3+5(3)+5^{4}=74-3+15+635=71+650=721$

espero ter ajudado