sydfred sydfred

15-02-2019
Mathematics

contestada

X^2+8x+12=0. Solve using quadratic formula

Respuesta :

MonsieurPengu MonsieurPengu

15-02-2019

D = b^2-4ac, thus D = 64 - 4*12 = 16

Now is x = -b +- sqrt(D) / 2a, or x = -8 +- sqrt(16)/2, giving respectively -2 and -6

So x = -2 or x = -6

Answer Link

Otras preguntas

factor the trinomial, 14c³-33c²+18c= ______ (factor completely)

what are the consonance from the seven ages of man?

Simplify 21/3 x 41/2

How do you find the graph of f(x)= 5x-1/x-3 ?

how do you put y=5-2x on a table with numbers -1,0,1,2?

Find dy/dx 2x+3y=sinx

express 4 less than one-thirteenth of some number,w can be expressed algebraically as?

Write the quadratic equation whose roots are 2 and -6, and whose leading coefficient is 1 .(Use the letter to represent the variable.) =0

Which of the following mathematical expressions is equivalent to the verbal expression “A number, x, squared is 39 more than the product of 10 and x” ? F. 2x =

Which number is the largest?A) 1.81B) 1.08C) 1.801