Astudent says that if 5x2 = 20, then x must be equal to 2. do you agree or disagree with the student? justify your answer. i disagree. if each side of the equation is divided by 5, the result is  x2  = 4. by the square root property of equality,  x  = -2 or  x  = 2. so  x  could be -2 instead of 2.

we have

solve for x

Divide by both sides

square root both sides

so

the solutions are

therefore

the answer is

I disagree because x could be instead of .

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

80

step-by-step explanation: