Needa234 Needa234

21-02-2017
Mathematics

contestada

Use a quadratic equation to find two real numbers that satisfies the situation.
The sum of the two numbers is 7 and their product is 14.

Respuesta :

wolf1728 wolf1728

21-02-2017

A) x + y = 7
B) x * y = 14

y = 7 -x
Inserting this into B)
B) x * (7-x) = 14
7x -x^2 = 14

-x^2 + 7x - 14 =0
Can't find the solution
Perhaps it should read the sum = 9?
Then x = 2 and y = 7

Answer Link

Otras preguntas

In what ways is packaging an important use of energy and materials

Phillip wants to buy a baseball cap. Sales tax in his city is 8%. Select the prices of all caps Phillip could buy for less than or equal to $20 once sales tax i

I give Brainliest. Can somebody help me with this pls??

what name was given to supporters of the new constitution

Help please if you can

When Spanish colonist set up large plantations, what were they growing? Coffee Sugar Cotton Tobacco

Put the following numbers in order from least to greatest. -1.9, 0.8, 3/4, -3, -3/4 I WILL MARK FIRST PERSON BRAINLEST!! Help

Command Economy is a economic system based on everyone has a business? True False

I said logical so yes or no?

I will mark u as the brainiest if u get this correct thx x xxxxxxxxxxxxxx I will mark u as the brainiest if u get this correct thx x I will mark u as the braini