An example should help :-
Simplify sqrt 20:-
sqrt 20 = sqrt (4 * 5) = sqrt 4 * sqrt5 = 2 sqrt5
cube root of 54 = cube root 27 * cube root 2 = 3 cube root 2
The rule is to factor the number and look for perfect squares or cubes, etc.
Answer:
see explanation
Step-by-step explanation:
Let u = x² ( choice of variable is flexible ), then
4u² - 21u + 20 = 0 ← expressed as a quadratic
This can now be solved for u and converted back into terms of x
31540000 in scientific notation is 3.154 x 107
Answer:
4
Step-by-step explanation:
The biggest possible real number = 60 ÷ 2 = 30
30 + 30 = 60
Largest Product = 30 x 30 = 900
Answer: The two numbers are 30 and 30.
