Question

$\frac{m {}^{2} + 3 }{4} - m = 0$
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Answer 1

Resposta:

S={( 1 , 3)}

Explicação passo-a-passo:

(m²+3)/4-m=0

m²+3-4m=0

m²-4m+3=0

a=1

b=-4

c=3

∆=b²-4.a.c

∆=(-4)²-4.(1).(3)

∆=16-12

∆=4

m'=[-(-4)+√4]/2.(1)

m'=[4+2]/2

m'=6/2

m'=3

m"=[-(-4)-√4]/2.(1)

m"=[4-2]/2

m"=2/2

m"=1

Answer 2

Resposta:

= (1 - 1/2)^2 + (-1+1/2)^3

= [(2-1)/2]^2 + [(-2+1)/2]^3

= (1/2)^2 + (-1/2)^3

= 1/4 - 1/8

Mmc (4,8) = 8

= (2 - 1)/8

= 1/8

= (2/3)^ (-2) - (1/2)^(-1) + (-1/4) ^ (-2)

= (3/2)^2 - 2^1 + 4^2

= 9/4 - 2 + 16

= 9/4 + 14

= (9+56)/14

= 65/14

= (4^7 . 4^10 . 4)^2 ÷ (4^5)^7

= [4^(7+10+1)] ^2 ÷ 4^(5.7)

= [4^18]^2 ÷ 4^35

= 4^36 ÷ 4^35

= 4