How do you write √245 in the form of x√5 ?
The answer is 7√5 .... but how do I get it?
Thank you soo much! There are things I would feel too embarrassed to ask people in real life :P :$
The answer is 7√5 .... but how do I get it?
Thank you soo much! There are things I would feel too embarrassed to ask people in real life :P :$
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245 = 5*49
So you can take out the sqrt of 49 which is 7 giving 7sqrt(5)
So you can take out the sqrt of 49 which is 7 giving 7sqrt(5)
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√245 = √(49*5) = √49 * √5 = 7√5
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√245 = √(5*49) = √5 * √49 = √5 * 7 = 7√5