Question

(5x+3)^3 answer the question pls​

Answer 1

Answer:

125x³ + 225x² + 135x + 27

(explanation is in the attachment ⬆️)

Answer 2

$\huge\sf\underline\red{Solution}$

Step by step explanation:-

We know one identity

(x + y)³ = x³ + y³ + 3xy(x + y)

Using this identity we can solve

So,

(5x + 3) ³ = (5x)³ + (3)³ + 3(5x)(3)[5x + 3]

(5x + 3)³ = 125x³ + 27 + 45x(5x + 3)

(5x + 3) ³ = 125x³ + 27+ 225x² + 135x

Write in order

(5x + 3)³ = 125x³ + 225x² +135x +27

Required answer

Know more identities

(a + b)² = a²+ b² +2ab

(a-b)² = a² +b² -2ab

(a+b)³ = a³+b³+3ab(a+b)

(a-b)³ = a³ + b³ -3ab(a+b)

a³ - b³ = (a-b)(a²+ab+b²)

a³+b³ = (a+b)(a²-ab+b²)