The solution to 1^2+2(1)-1 is 2

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1^2+2(1)-1

Solution

1^{2} + 2 (1) - 1

2

Solution steps

1^{2} + 2 (1) - 1

Follow the PEMDAS order of operations

Calculate exponents

1^{2} : 1

1^{2}

1^{2} = 1

= 1

= 1 + 2 (1) - 1

Multiply and divide (left to right)

2 (1) : 2

2 (1)

Apply rule:

(a) = a

(1) = 1

= 2 \cdot 1

Multiply the numbers:

2 \cdot 1 = 2

= 2

= 1 + 2 - 1

Add and subtract (left to right)

1 + 2 - 1 : 2

1 + 2 - 1

1 + 2 = 3

= 3 - 1

3 - 1 = 2

= 2

= 2

(\frac{7}{2} \div \frac{4}{4}) - \frac{3}{8}

\frac{2}{9} \times \frac{3}{4} \times (- 7)

- 18 + (- 6) - (+ 11) - (- 5 + 7)

18 \div 3 + (9 - 5)^{3}

12 (3) + 3 (- 9)