Respuesta :

VanillaCoco

Answer:

x= 2

Step-by-step explanation:

move 28 to the other side and flip the sign: -7x^2 = -28

divide by -7 on both sides: x^2 = 4

now take the exponent of x to the other side to isolate x (note: when taking an exponent to the other side to isolate a variable (x), the exponent will turn into a square root): x= [tex]\sqrt{4}[/tex]

solve: x=2

3343102736

Answer:

x= 2

Step-by-step explanation:

move 28 to the other side and flip the sign: -7x^2 = -28

divide by -7 on both sides: x^2 = 4

now take the exponent of x to the other side to isolate x (note: when taking an exponent to the other side to isolate a variable (x), the exponent will turn into a square root): x= \sqrt{4}4

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