lanerumbaugh lanerumbaugh
  • 25-08-2020
  • Mathematics
contestada

Which is a solution to the equation? (x −2)(x + 5) = 18 x = −10 x = −7 x = −4 x = −2

Respuesta :

mirai123
mirai123 mirai123
  • 25-08-2020

Answer:

Solutions:

[tex]x=-7[/tex]

[tex]x=4[/tex]

Step-by-step explanation:

[tex](x-2)(x + 5) = 18[/tex]

Expanding the factored form:

[tex]x^2+5x-2x-10=18[/tex]

[tex]x^2+3x-28=0[/tex]

Factoring the second-degree polynomial:

[tex](x+7)(x-4)=0[/tex]

This is true for

[tex]x=-7 \text{ or } x=4[/tex]

Answer Link
djfiremonkeyx djfiremonkeyx
  • 16-04-2021

Answer:

B

Step-by-step explanation:

Answer Link

Otras preguntas

Simplifying expressions with exponents
so the answer is Which is the factorization of 8x2 + 13x – 6? (8x – 3)(x + 2) (x – 6)(8x + 1) (2x – 2)(4x + 3) (4x – 1)(2x + 6)
Is this table a function or no?
men with symptoms of blank may notice a penile discharge, a burning sensation when urinating or pain and swelling in one or both testicles. A. chlamydia B. herp
How did roman architecture differ from traditional persians, egyptians, greeks and etruscans monumental architecture?
What is bigger 4/5 or .71
Solve for x -8+x+1=10 show work
Is this taha function or no?
inverse of the function of y = x2 + 4x + 4
Which of the following is a scientific species designation? human Homo sapien Homo sapien