Every positive real number has TWO<span>square roots; One is positive and one is negative. They are opposites of each other. </span>
10 is a square root of 100 because (10)(10) = 100, and ̶ 10 is also a square root of 100 because ( ̶ 10)( ̶ 10) = 100.
In general, “a” is a square root of “b” if a² = b, where “a” is a real number and b ≥ 0.
In conclusion:
<span> √(100) = </span>10<span> (the </span>positive<span> square root of 100) </span>and<span> </span>
<span> ̶ √(100) = ̶ (10) = </span>̶ 10<span> (the </span>negative<span> square root of 100)</span>
Answer:
-2
Step-by-step explanation:
Simplify the following:
2 - 3 - 4 - 4 + 7
2 - 3 - 4 - 4 + 7 = (2 + 7) - (3 + 4 + 4):
(2 + 7) - (3 + 4 + 4)
2 + 7 = 9:
9 - (3 + 4 + 4)
3 + 4 = 7:
9 - (7 + 4)
7 + 4 = 11:
9 - 11
9 - 11 = -2:
Answer: -2
Value of x is used to consider unknown value. The letter “x” is commonly used in algebra to indicate an unknown value. It is referred to as a “variable” or, in some cases, a “unknown.” In x + 2 = 7, x is a variable
