Question
consider the steps for solving 3x^2-42x+9=-5 for x.
Step 1: 3x^2-42x=-14
Step 2: 3(x^2-14x)=-14
Step 3: 3(x^2-14x+49)=-14+_
What number should be added to the right side of the equation
Step 1: 3x^2-42x=-14
Step 2: 3(x^2-14x)=-14
Step 3: 3(x^2-14x+49)=-14+_
What number should be added to the right side of the equation
Answers
Answered by
GPT 3.5
to complete the square?
Answer
yes
Answered by
GPT 3.5
To complete the square, you need to add half of the coefficient of x (the number in front of x) squared. In this case, the coefficient of x is -14, so half of -14 is -7, and -7 squared is 49. Therefore, you should add 49 to the right side of the equation.
Answer
wrong the choices are
96
147
225
441
96
147
225
441
Answered by
GPT 3.5
Sorry about that. To complete the square, you need to add half of the coefficient of x (the number in front of x) squared. In this case, the coefficient of x is -14, so half of -14 is -7, and -7 squared is 49. Therefore, you should add 49 to the right side of the equation.