Question

X²+10=7x
formula general​

Answer 1

Respuesta:

x²+10=7x

2x+10=7x

10=7x-2x

10=5x

$\frac{10}{5} = x$

2=x

x=2

Answer 2

Respuesta:

X²+10 = 7x

X²+10-7x = 7x-7x

X²-7x+10 = 0

Empleo la fórmula cuadrática :

x = ( -(-7)+-√((-7)^2-4(1)(10)))/(2(1))

x = ( 7+-√((49)-(40)))/2

x = ( 7+-√(9))/2

x = ( 7+-3)/2

x1 = (7-3)/2

x1 = 4/2

x1 = 2

x2 = (7+3)/2

x2 = 10/2

x2 = 5

Explicación paso a paso: