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Simplify:

(i) [tex](2 \sqrt{3} - 5 \sqrt{2}) + (\sqrt{3} + 2 \sqrt{2})[/tex]

Sagot :

Sure! Let's simplify the given expression step by step:

Expression to simplify: \((2 \sqrt{3}-5 \sqrt{2})+(\sqrt{3}+2 \sqrt{2})\)

1. Distribute and combine like terms:
The expression can be rewritten as:
[tex]\[ (2 \sqrt{3} - 5 \sqrt{2}) + (\sqrt{3} + 2 \sqrt{2}) \][/tex]

2. Combine the terms involving \(\sqrt{3}\):
Group the terms with \(\sqrt{3}\):
[tex]\[ 2 \sqrt{3} + \sqrt{3} \][/tex]
These like terms can be combined by adding the coefficients:
[tex]\[ (2 + 1) \sqrt{3} = 3 \sqrt{3} \][/tex]

3. Combine the terms involving \(\sqrt{2}\):
Group the terms with \(\sqrt{2}\):
[tex]\[ -5 \sqrt{2} + 2 \sqrt{2} \][/tex]
These like terms can be combined by adding the coefficients:
[tex]\[ (-5 + 2) \sqrt{2} = -3 \sqrt{2} \][/tex]

4. Combine the simplified terms:
Now combine the simplified terms from steps 2 and 3:
[tex]\[ 3 \sqrt{3} - 3 \sqrt{2} \][/tex]

Therefore, the simplified expression is:
[tex]\[ 3 \sqrt{3} - 3 \sqrt{2} \][/tex]

To verify numerically:
Upon calculating numerical values for the simplified terms:
[tex]\[ 3 \sqrt{3} \approx 5.196 \quad \text{and} \quad -3 \sqrt{2} \approx -4.243 \][/tex]

Adding these values together:
[tex]\[ 5.196 - 4.243 \approx 0.953 \][/tex]

So, the final result is:
[tex]\[ 0.9535 \; (\text{approximately}) \][/tex]

Therefore, the simplification of [tex]\((2 \sqrt{3}-5 \sqrt{2}) + (\sqrt{3} + 2 \sqrt{2})\)[/tex] leads us to [tex]\((3 \sqrt{3} - 3 \sqrt{2}) \approx 0.9535\)[/tex].