What is 9(9)^2-90(9)+4 ?

The solution to 9(9)^2-90(9)+4 is -77

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9(9)^2-90(9)+4

9 (9)^{2} - 90 (9) + 4

- 77

Solution steps

9 (9)^{2} - 90 (9) + 4

Follow the PEMDAS order of operations

Calculate exponents

(9)^{2} : 81

(9)^{2}

(9)^{2} = 81

= 81

= 9 \cdot 81 - 90 (9) + 4

Multiply and divide (left to right)

9 \cdot 81 : 729

9 \cdot 81

9 \cdot 81 = 729

= 729

= 729 - 90 (9) + 4

Multiply and divide (left to right)

90 (9) : 810

90 (9)

Apply rule:

(a) = a

(9) = 9

= 90 \cdot 9

Multiply the numbers:

90 \cdot 9 = 810

= 810

= 729 - 810 + 4

Add and subtract (left to right)

729 - 810 + 4 : - 77

729 - 810 + 4

729 - 810 = - 81

= - 81 + 4

- 81 + 4 = - 77

= - 77

= - 77

39 - (27 - 42 - (19 - 35) + 18) - 37

10 - 4 \times (- 2)

2^{4} \times (10 - 6) \div (5 \times 0 + 2^{2}) + 9

6^{2} \times 12

2 \times 2^{10}