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√20 + 2√45 - √80
20 = 2 x 2 x 5 = 22 x 5, so √20 is 2√5
45 = 3 x 3 x 5 = 32 x 5 so √45 = 3√5
80 = 4 x 4 x 5 = 42 x 5, so √80 is 4√5:
After simplifying each radical:
2√5 + 2(3√5) - 4√5
2√5 + 6√5 - 4√5
Combine like terms:
(2+6-4)√5
4√5
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∙ 11y ago
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What is the cube root of 45?
Antilog ((log 45)/3)
What is the square root of 45 in simplest radical form?
The square root of 45 in simplest form is 3sqrt(5). You take the 2 roots from 45 (5 and 9) and find out the square root of 9 is 3, while the square root of 5 is still just square root 5.
What is the sqaure root of 45?
it is 6.7082
Square root of 2025?
45
How greater is 45 than 20 in percent?
If 20 = 100% then 45 = 225% So, 45 is an increase of 125% on 20
What is 2 square root of 20 - square root of 20 plus 3 square root of 20 - 2 square root 45?
It is 2*sqrt(5).
How do you simplify 17a plus 21a plus 45?
17a + 21a + 45 = 38a+ 45
Is it possible to add a radical if there different under the square roots?
You can always add radicals, but you can't simplify unless the radicands have a common factor. For example, the square root of 20 plus the square root of 45 equals 2 times the square root of 5 plus 3 times the square root of 5, which is 5 times the square root of 5.
What is 45 plus 20?
45 + 20 = 65
What is 45 plus 20 percent?
45 + (20%) = 54
What is 20 plus 25?
The answer is 20+25=45
What is the fraction 20 over 45 reduced to its lowest term?
Both 20 & 45 are divisible by 5.Therefore we can simplify this to 4/9.
What fraction is 45 cents of 1.00?
if you simplify it the answer is 9/20 but as a non simplified fraction the answer is 45/100
How do you turn 45 percent into a fraction?
Percentages are fractions over 100. So 45% is 45/100 You can then simplify that to 9/20
What is four square root of five plus four square root of five in radical form?
45+45+90
What is 10 plus 15 plus 20?
10 + 15 + 20 = 45
What is the answer to 10x-15x plus 5-45 plus 20?
It is: -5x-20 when simplified
