Which of the following solutions to the equation

Ответ:

supchef

18.01.2022

The correct options are D and E.

Step-by-step explanation:

The given equation is

x^2+4x-9=5x+3

Subtract 5x+5 from both the sides.

x^2+4x-9-5x-3=0

Combine like terms.

x^2-x-12=0

The middle term can be written as -4x+3x.

x^2-4x+3x-12=0

x(x-4)+3(x-4)=0

(x-4)(x+3)=0

Using zero product property, equate each factor equal to 0.

$x-4=0\Rightarrow z=4$

$x+3=0\Rightarrow z=-3$

Therefore correct options are D and E.

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