cbdancer84 cbdancer84
  • 04-09-2018
  • Mathematics
contestada

7y^2+18y+22=6y^2+34y-41

Respuesta :

zrh2sfo
zrh2sfo zrh2sfo
  • 04-09-2018

Solve for y over the real numbers:

7 y^2 + 18 y + 22 = 6 y^2 + 34 y - 41

Subtract 6 y^2 + 34 y - 41 from both sides:

y^2 - 16 y + 63 = 0

The left hand side factors into a product with two terms:

(y - 9) (y - 7) = 0

Split into two equations:

y - 9 = 0 or y - 7 = 0

Add 9 to both sides:

y = 9 or y - 7 = 0

Add 7 to both sides:

Answer:  y = 9 or y = 7

Answer Link

Otras preguntas

Solve these problems. Find the coordinates of the point for each reflection. (-5, 7) across the x-axis? (2, 5.5) across the y-axis? Find the distance between e
Why did the France start a colony in canada
Need help with circle measurements in Geometry.
Why did the south win most of the early battles of the civil war?
How to write an expression equivalent to x-3y+4?
In the triangle below, what ratio is cotθ? 12 over 13 5 over 13 5 over 12 12 over 5
On a farm 4 1/2 out of every 15 acres of the land are used to grow crops. Wheat is grown on 5/8 of the land used to grow crops. What percentage of the total are
Write a rule using numbers to find the number of squares in any figure in the pattern
what are the original 13 colonies and which became states first?
Half a number decreased by 4 2/5