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

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