Question

Solve for x:


4πx + 5! = 5! + 276π​

Answer 1

Answer:

Step-by-step explanation:

4\pi \: x = 276\pi4πx=276π

x = 69x=69

Answer 2

Answer:

1) The identity used here is...

(a-b)³ = a³-b³-3ab(a-b)

(2x-3y)³ = (2x)³-(3y)³-3×2x×3y×(2x-3y)

= 8x³-27y³-18xy(2x-3y)

= 8x³-27y³-36x²y+54xy²

2) The identity used here is...

(a+b)³ = a³+b³+3ab(a+b)

(2x+⅓)³ = (2x)³ + (⅓)³ + 3×2x×⅓(2x+⅓)

= 8x³ + 1/27 + 2x(2x+⅓)

= 8x³ + 1/27 + 4x² + ⅔x

3) The identity used here is...

(a+b)² = a²+b²+2ab

a+b = 5

ab = 6

5² = a²+b²+2×6

25 = a²+b²+12

a²+b² = 13