Question

f. Si : 4 ( 3x – 7) = 2 ( 4x + 2) ; Calcula : H = x2 + 2x +5

Answer 1

Respuesta:

H = $x^{2}$ + 2x + 5

Explicación paso a paso:

4( 3x - 7) = 2( 4x + 2)

12x - 28 = 8x + 4

12x - 8x = 4 + 28

         4x = 32

           x = 32/4

           x = 8

H = $x^{2}$ + 2x + 5

H = $8^{2}$ + 2(8) + 5

H = 64 + 16 + 5

H = 85