Help me please. Quick!

7

Step-by-step explanation:

if the total is 49 squared, and squared means a number times itself, then the answer would be whatever number times itself is 49, will be the answer in this case, its 7

Ex: 9 squared=3x3

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation: