Answer:
6 or -6
Step-by-step explanation:
The symbol √ is the square root symbol.
The square root of a number is a number that when you multiply it by itself you get the first number.
For example:
The square root of 9 is 3 since 3 times itself, 3 × 3, is 9.
The square root of 9 is also -3 since (-3) × (-3) is 9.
The question is asking for the positive and negative square roots of 36.
What number multiplied by itself is 36?
The answer is 6 since 6 × 6 = 36 and -6 × -6 = 36
Answer: 6 or -6
If you expand the square, you have
Simplify the right hand side:
Cancel the -3x appearing on both sides:
Multiply both sides by 4:
Consider the square root of both terms (using the doubles sign):
#1
Multiples of 2:
2, 4, 6, 8, <u>10</u>, 12, 14, 16, 18, 20,...
Multiples of 5:
5, <u>10</u>, 15, 20, 25, 30, 35, 40, ...
#2
Multiples of 6:
6, 12, 18, 24, <u>30</u>, 36, 42, 48, 54, 60, ...
Multiples of 10:
10, 20, <u>30</u>, 40, 50, 60, ...
1st one 6.4
C^2= a^2 +b^2
C^2 = 5^2 + 4^2
C^2 = 25 + 16
C^2= 41
Root of 41 is 6.4