QUESTION FOR 50 POINTS
Solve this equation using an algebraic method: (x + 4)(x - 4) = 9
Choices are:
x=5
x=4 and x=-4
x=9
x=5 and x=-5

Question

01-05-2017
Mathematics

contestada

QUESTION FOR 50 POINTS
Solve this equation using an algebraic method: (x + 4)(x - 4) = 9
Choices are:
x=5
x=4 and x=-4
x=9
x=5 and x=-5

Respuesta :

Otras preguntas

Estimated total manufacturing overhead costs $750,000 Actual total manufacturing overhead costs $ 765,000 Estimated machine hours

Una niña de 5 pies de estatura se aleja de un poste de luz, cuya altura es 12 pies, a razón de 3 pies por segundo. Encuentre la razón de cambio de la longitud d

Linda ate lunch at a deli. She ordered a turkey sandwich and a salad for $13.60. The tax was 6.5%. What was the total amount Linda paid for her lunch?

Perform the following for each 8 bit binary addition: add the two binary numbers interpret all there 8 bit binary numbers as a signed number (2’s complement) i

Need help please thank you

From North America name a country that is southeast?

what percent of 700 is 273

Margaret is solving the linear equation 3(x+4)=42 . As she was solving, she took the equation 3(x+4)=42 , performed an algebraic operation and ended up with 3x+

As the force increases, the ________ increases, too.

irspow irspow · Answer 1 · 2017-05-01T21:55:10+02:00

irspow irspow

01-05-2017

(x+4)(x-4)=9 expand left side by performing indicated multiplication...

x^2-16=9 add 16 to both sides

x^2=25 take the square root of both sides...

x=±5

x=-5 and 5

So the answer would be the bottom choice.

Answer Link

phillipino2002 phillipino2002 · Answer 2 · 2017-05-01T21:55:12+02:00

phillipino2002 phillipino2002

01-05-2017

the answer is
x=5 and x=-5

Answer Link

QUESTION FOR 50 POINTS Solve this equation using an algebraic method: (x + 4)(x - 4) = 9 Choices are: x=5 x=4 and x=-4 x=9 x=5 and x=-5

Respuesta :

Otras preguntas

QUESTION FOR 50 POINTS
Solve this equation using an algebraic method: (x + 4)(x - 4) = 9
Choices are:
x=5
x=4 and x=-4
x=9
x=5 and x=-5