Question

1)simplify
$7 \sqrt{5} - 4 \sqrt{5} + \sqrt{80}$
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Answer 1

#Solurion:-

$7 \sqrt{5} - 4 \sqrt{5} + \sqrt{80} \\ 7 \sqrt{5} - 4 \sqrt{5} + 4 \sqrt{5} \\7 \sqrt{5}$

• $\bold{7\sqrt{5}}$

$\Large{\tt{@MrMonarque}}$

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Answer 2

Step-by-step explanation:

Given⤵

➡7√5-4√5+√80

To find⤵

➡Answer by simplyfing

Solution⤵

➡We can write √80 as 4√5 because if we solve 4√5 it comes √80.

$➡7 \sqrt{5 } - 4 \sqrt{5} + \sqrt{80} \\ ➡We \: can \: write \: √80 \: as \: 4√5 \: because \\ \: if \: we \: solve \: 4√5 \: it \: comes \: √80. \\ ➡7 \sqrt{5} - 4 \sqrt{5} + 4 \sqrt{5} \\➡(7 - 4 + 4) \sqrt{5} \\ ➡7 \sqrt{5}$

✅Simplyfing 7√5-4√5+√80 answer is 7√5.

Hope this is helpful to you!