## THIS USER ASKED ๐

**Which of the following can be reduced to a single number in standard form?**

**A. 3?3+5?8
N. 2?5+3?45
C. ?7+?9
D. 4?2+3?6**

## THIS IS THE BEST ANSWER ๐

The whole question is;

Which of the following can be reduced to one number in standard form?

A) 3โ3 + 5โ8

B) 2โ5 + 5โ45

C) โ7 + โ9

D) 4โ2 + 3โ6

Only option B) 2โ5 + 5โ45 can be reduced to one number

Explanation:

A) Do 3โ3 + 5โ8;

Let’s get simplified;

3โ3 + 5โ (4 ร 2)

From this we get;

3โ3 + (5 ร 2) โ2 = 3โ3 + 10โ2

This is number 2 and not number one. So it cannot be reduced to a single number in standard form.

B) 2โ5 + 5โ45

Get simplified;

2โ5 + 5โ (9 ร 5)

This gives;

2โ5 + (5 ร 3) โ5 = 2โ5 + 15โ5

When the surds are added;

17โ5.

This is a single number and can therefore be reduced to a single number

C) Do โ7 + โ9

Simplify, obtain;

โ7 + 3.

This is number 2 and not number one. So it cannot be reduced to a single number in standard form.

D) 4โ2 + 3โ6

So it cannot be further simplified because both numbers within the square root are not factors that are perfect squares.

So it is a 2 number and not a single number and cannot be reduced to one number in standard form.

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