Question

X + 5 y ka whole cube

Answer 1

Answer:

(x+5)² = x²+10x+25 (answer)

Answer 2

Answer:

${(x+ 5y)}^{3} = {x}^{3 } + (5y)^{3} + 3(x)(5y)(x + 5y) \\ = {x}^{3} + 125 {y}^{3} + 15xy(x + 5y) \\ = {x}^{3} + 125 {y}^{3} + 15x^{2}y + 75xy^{2}$

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