IDNLearn.com: Where your questions meet expert advice and community support. Our community is here to provide the comprehensive and accurate answers you need to make informed decisions.

The movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer.

Simplify [tex]7 + \sqrt{6(3+4) - 2 + 9} - 3 \cdot 2^2[/tex].


Sagot :

Absolutely! Let's break down the expression step-by-step to simplify it. The expression we need to simplify is:

[tex]\[7 + \sqrt{6(3+4) - 2 + 9} - 3 \cdot 2^2\][/tex]

1. Simplify within the parentheses:

[tex]\[3 + 4 = 7\][/tex]

This gives us:

[tex]\[7 + \sqrt{6(7) - 2 + 9} - 3 \cdot 2^2\][/tex]

2. Multiply within the expression inside the square root:

[tex]\[6 \cdot 7 = 42\][/tex]

Now the expression is:

[tex]\[7 + \sqrt{42 - 2 + 9} - 3 \cdot 2^2\][/tex]

3. Perform the remaining arithmetic inside the square root:

[tex]\[42 - 2 = 40\][/tex]

[tex]\[40 + 9 = 49\][/tex]

So the expression now simplifies to:

[tex]\[7 + \sqrt{49} - 3 \cdot 2^2\][/tex]

4. Evaluate the square root:

[tex]\[\sqrt{49} = 7\][/tex]

Now the expression is:

[tex]\[7 + 7 - 3 \cdot 2^2\][/tex]

5. Evaluate the exponentiation:

[tex]\[2^2 = 4\][/tex]

So we have:

[tex]\[7 + 7 - 3 \cdot 4\][/tex]

6. Perform the multiplication:

[tex]\[3 \cdot 4 = 12\][/tex]

This makes the expression:

[tex]\[7 + 7 - 12\][/tex]

7. Add and subtract to simplify the final expression:

[tex]\[7 + 7 = 14\][/tex]

[tex]\[14 - 12 = 2\][/tex]

So, after simplifying the expression step-by-step, the final result is:

[tex]\[2\][/tex]