TwanaZumbrunnen TwanaZumbrunnen
  • 21-05-2014
  • Mathematics
contestada

y2 + 14y + 49 = 0 Please help me :)

Respuesta :

Аноним Аноним
  • 21-05-2014
[tex]y^2+14y+49=0\\\\\underbrace{y^2+2\cdot y\cdot7+7^2}_{(*)}=0\\\\(y+7)^2=0\iff y+7=0\to y=-7\\\\-----------------------\\\\(*)\ \ \ (a+b)^2=a^2+2ab+b^2[/tex]
Answer Link

Otras preguntas

Based on the crystal-field strengths cl- < f- < h2o < nh3 < h2nc2h4nh2, which octahedral ti (iii) complex below has its d-d electronic transition at
Find the domain and range of f(x) = -|x|
4m 12m volume of a cone
HELPPPPPPPPPPP why is the answer B?
HELP ILL MARK YOU AS BRAINLES One quart equals 946.35 milliliters. How many milliliters are in 3 pints? Round the answer to the nearest tenth.
An amount of $37000 is borrowed for 7 years at 6.75% interest, compounded annually. if the loan is paid in full at the end of that period, how much must be paid
Why metal wire coated with plastic or rubber is used in electric circuits
When making a solution of sugar and water, you begin with a 500 ml beaker, 10 grams of sugar, and 400 ml of distilled water. which procedure will allow you to d
he model is a programmatic representation of a plant cell in which location does glycolysis occur in the cell?
What is 0.36 expressed as a fraction in simplest form