HELP PLZ FAN AND MEDAL!!

1. What is the solution of n² – 49 = 0? (1 point)
–7
7
±7
no solution

2. What is the solution of x² + 64 = 0? (1 point)
–5
8
±8
no solution

3. What is the side length of a square with an area of 144x²? (1 point)
12
12x
±12x
no solution

5. What is the value of z so that –9 and 9 are both solutions of x² + z = 103? (1 point)
–22
3
22
184

Question

HELP PLZ FAN AND MEDAL!!


1.   What is the solution of n² – 49 = 0?  (1 point)
–7
7
±7
no solution

2.   What is the solution of x² + 64 = 0?  (1 point)
–5
8
±8
no solution

3.   What is the side length of a square with an area of 144x²?  (1 point)
12
12x
±12x
no solution

5.   What is the value of z so that –9 and 9 are both solutions of x² + z = 103?  (1 point)
–22
3
22
184

anonymous · Answer

ok for number 1 try to find what nuber would replace n to make it 0

anonymous · Answer

but you have to take note of the to the power of 2

anonymous · Answer

-7?

anonymous · Answer

no try and find what would make 49 if multiplied to itself

anonymous · Answer

no negitives

kendricklamar2014 · Answer

1. it would be the third option

anonymous · Answer

7?

kendricklamar2014 · Answer

no, ±7 is the answer

kendricklamar2014 · Answer

2. Subtract -64 from both sides

kendricklamar2014 · Answer

$$x^2 + 64 - 64 = 0 - 64$$

kendricklamar2014 · Answer

Now you take the square root, and you get: No Real Solution