Question

escreva de forma normal A x²-7=x+5, B x²+11x=16x-5, C x ( x-6) + x² =(x-5) (x+2), D (x - 10)² + x (x+17) = 104.

Answer 1

Explicação passo-a-passo:

Escreva na forma normal:

A) x²—7 = x + 5

x²—x — 7 — 5 = 0

x² — x — 12 = 0

B)

x² + 11x = 16x — 5

x² + 11x — 16x + 5 = 0

x² — 5x + 5 = 0

C).

x ( x—6 ) +x² = (x—5) ( x+2 )

x²—6x + x² = x²+2x—5x—10

2x²—6x = x²—3x—10

2x²—x²—6x+3x+10 = 0

x² — 3x + 10 = 0

D)

(x—10)² + ( x+17 ) = 104

x²—2•x•10+10²+x+17 = 104

x²—20x+x+100+17—104 = 0

x²—19x+117—104 = 0

x² — 19x + 13 = 0

Espero ter ajudado bastante!)