Consider the steps for solving 3x^2 - 42x 9 = -5 step 1: 3x^2 - 42x = -14 step 2: 3(x^2-14x) = -14 step 3: 3(x^2- 14x 49) = -14

Question

Iteru [2.4K]

4 years ago

9

Consider the steps for solving 3x^2 - 42x 9 = -5 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?

Mathematics

1 answer:

WARRIOR [948] · Answer 1 · 2021-11-11T09:55:54+03:00

In simplfying equations, it is important to follow PEMDAS rules. We do as follows:

<span>3x^2 - 42x 9 = -5

step 1: 3x^2 - 42x = -14

step 2: 3(x^2-14x) = -14

step 3: 3(x^2- 14x + 49) = -14 + 49(3) = -14 + 147

Therefore, the number that should be added to the equation is 147.

Hope this helped. Have a nice day.</span>