What is (-6)^2-4(1)(9) ?

The solution to (-6)^2-4(1)(9) is 0

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(-6)^2-4(1)(9)

(- 6)^{2} - 4 (1) (9)

0

Solution steps

(- 6)^{2} - 4 (1) (9)

Follow the PEMDAS order of operations

Calculate exponents

(- 6)^{2} : 36

(- 6)^{2}

Apply exponent rule:

(- a)^{n} = a^{n},

n

is even

(- 6)^{2} = 6^{2} = 36

= 36

= 36 - 4 (1) (9)

Multiply and divide (left to right)

4 (1) (9) : 36

4 (1) (9)

4 (1) = 4

4 (1)

Apply rule:

(a) = a

(1) = 1

= 4 \cdot 1

Multiply the numbers:

4 \cdot 1 = 4

= 4

= 4 (9)

4 (9) = 36

4 (9)

Apply rule:

(a) = a

(9) = 9

= 4 \cdot 9

Multiply the numbers:

4 \cdot 9 = 36

= 36

= 36

= 36 - 36

Add and subtract (left to right)

36 - 36 : 0

36 - 36

36 - 36 = 0

= 0

= 0

0 - (1 \times 1)

- 2 (- 4)^{2}

6 \cdot 2^{3}

10 + 11 - 5 - 1 + 7 - 2

(7 - 5) (3 - 2 - 4 \div 2 - 3 (6 - 2 - 8 \div 4))