mchanadam mchanadam
  • 03-08-2015
  • Mathematics
contestada

Solve each quadratic equation. Show your work.


14. (2x – 1)(x + 7) = 0

Respuesta :

Julik
Julik Julik
  • 03-08-2015
(2x – 1)(x + 7) = 0

2x-1=0
2x=1
x=1/2
x=0.5

x+7=0
x= -7
Answer Link
Аноним Аноним
  • 03-08-2015
solve your equation step-by-step.

(2x−1)(x+7)=0

Simplify both sides of the equation.

2x2+13x−7=0

Factor left side of equation.

(2x−1)(x+7)=0

Set factors equal to 0.

2x−1=0 or x+7=0

x=1/2 or x=−7

Answer Link

Otras preguntas

find an equivalent expression without parentheses -(50x-15y+15)=
Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??
Can someone use the word delta in a sentence
find an equivalent expression without parentheses -(50x-15y+15)=
how is mass transit in cities a possible solution tk urban air pollution?
Scarcity is the condition of not having enough goods and services to satisfy everyone's?
How is it possible for Mercury to have frozen ice ?
Which equation has the same y-intercept as y=4x-3?a. y-3=x              b. y=8x+3    c. 3-y=4x      d. y=-3+8xWhich of the following is the equation of the line
Data are drawn from a symmetric and bell shaped distribution with a mean of 120 and a standard deviation of 5. There are 900 observations in the data set. What
(10y^3+20y^2+55y)/5y