Question

b. Simplify:- 5+ [ 3 − 3 − {2 2 −(7 3 − 5 − 7)− 5 3 } − 3 2 + 5 − 2]​

Answer 1

Answer:

3x³ - 5x² - 7

Step-by-step explanation:

5 + [x³ - 3 - {2x² - (7x³ - 5x - 7) - 5x³} - 3x² + 5x - 2]

Using the BODMAS rule, we will open the brackets first.

⇒ 5 + x³ - 3 - 2x² + 7x³ - 5x - 7 - 5x³ - 3x² + 5x - 2

⇒ (5 - 2 - 7 - 3) + (x³ + 7x³ - 5x³) + (- 2x² - 3x²) + (- 5x +5x)

⇒ (-7) + (3x³) + (- 5x²) + (0)

⇒ 3x³ - 5x² - 7

Hence the simplified form of this equation is 3x³ - 5x² - 7.

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