Question

Expand :
$(x + 5) ^{3}$
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Answer 1

Step-by-step explanation:

$\bold{\boxed{ ( {a + b})^{3}= {a}^{3} + 3(a)( {b})^{2} + 3( {a})^{2} (b) + {b}^{3}}}$

$( {x + 5})^{3}$

$= {x}^{3} + 3(x)( {5})^{2} + 3( {x})^{2} (5) + {5}^{3}$

$= {x}^{3} + 75x + 15 {x}^{2} + 125$

$= {x}^{3} + 15 {x}^{2} + 75x + 125$

HOPE THAT HELPS!!

Answer 2

Answer:

(a+b)³=a³+3a²b+3ab²+b³

(x+5)³=x³+15x²+75x+125