crlambert715 crlambert715

02-04-2018
Mathematics

contestada

Suppose $a$ and $b$ are the solutions to the quadratic equation $2x^2-3x-6=0$. Find the value of $(a+2)(b+2)$.

Respuesta :

calculista calculista

11-04-2018

we have that

2x²-3x-6=0
using a graph tool----------> to resolve the second order equation
see the attached figure
the solution is
x=-1.137
x=2.637

therefore
a=-1.137
b=2.637
so
(a+2)*(b+2)-----------> (-1.137+2)*(2.637+2)--------> 0.863*4.637---> 4

the answer is 4

Ver imagen calculista

Answer Link

Otras preguntas

Tasha believes that she can rewrite the difference 120 - 36 as a product of the GCF of the 2 numbers and another difference. Is she correct?

What is two thirds of 120?

A six−sided die, with sides numbered 1,2, 3,4,5, and 6, is tossed. What is the probability of tossing a number less than three?

Explain the connection, or relationship between a protagonist and an antagonist.

what is a post hoc fallacy?

1/3(9x+27)-4=1/2(2x+54)

Who was Malinche and what other name was she called?

If 604-72=___,then 532+___=604.Explain the process of checking your work.

how to Express each decimal as a fraction or a mixed number in a simplest form ? I need help with -0.14

the student council president wants to find out the opinion of the students on the issue of school lunch options. The president sends out a survey to a random