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Complete the following questions:

[tex]\[ 4 \times 5 - \left(2^2 - 2\right) = \square \][/tex]

[tex]\[ (18 \div 3) + \left(3^2 - 7\right) = \square \][/tex]

Sagot :

GinnyAnsweridn
Sure, let's work through each question step by step.

### For the first expression:
[tex]\[ 4 \times 5 - \left(2^2 - 2\right) \][/tex]

1. Start by calculating the exponent:
[tex]\[ 2^2 = 4 \][/tex]

2. Then, perform the subtraction inside the parentheses:
[tex]\[ 4 - 2 = 2 \][/tex]

3. Next, multiply:
[tex]\[ 4 \times 5 = 20 \][/tex]

4. Finally, subtract:
[tex]\[ 20 - 2 = 18 \][/tex]

So, the value for the first expression is:
[tex]\[ 18 \][/tex]

### For the second expression:
[tex]\[ (18 \div 3) + \left(3^2 - 7\right) \][/tex]

1. Begin by performing the division:
[tex]\[ 18 \div 3 = 6 \][/tex]

2. Calculate the exponent:
[tex]\[ 3^2 = 9 \][/tex]

3. Then, perform the subtraction inside the parentheses:
[tex]\[ 9 - 7 = 2 \][/tex]

4. Finally, add the results:
[tex]\[ 6 + 2 = 8 \][/tex]

Therefore, the value for the second expression is:
[tex]\[ 8 \][/tex]

Completed answers in the boxes are:
[tex]\[ 4 \times 5-\left(2^2-2\right)= 18 \][/tex]
[tex]\[ (18 \div 3)+\left(3^2-7\right)= 8 \][/tex]
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