annabinderschool annabinderschool

12-10-2018
Mathematics

contestada

Find the values of x for which f(x)=g(x) (f)x=x^2-7x+3 g(x)=-3x+8

Respuesta :

jimrgrant1 jimrgrant1

13-10-2018

x = 5 or x = - 1

equate f(x) and g(x)

x² - 7x + 3 = - 3x + 8 ( subtract (- 3x + 8 ) from both sides )

x² - 4x - 5 = 0 ← in standard form

(x - 5)(x + 1) = 0

equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 1 = 0 ⇒ x = - 1

Answer Link

Otras preguntas

How do you say hello my name is Katie in french

The idea of spreading christianity was not an important part of the age of exploration true or false

Ella has 50 stacks of ten pennies in each stack. Describe how to find how many pennies Ella has in all.

Mark thought it was strange that Molly left Linda’s party without saying good-bye to him, especially since they’d come together. The next week he called her eve

What do points do in Brainly? Can you earn anything with them?

Solve and graph the absolute value inequality: |4x + 1| ≤ 5.

una oracion con la Palabras acechandola

The expression 0.07x+(x−300) models the final price of a television set with an instant rebate in a state that charges a sales tax. Enter the expression in t

x + a = yb Solve for y

Given that f(x) = 2x 1 and g(x) = −5x 2, solve for f(g(x)) when x = 3.