Question

Factorise : 125a3 + 0.064

Answer 1

Step-by-step explanation:

• 5
• ${(5a)}^{3} + (64 \div 1000) ^{3} \\ \\ {(5a)}^{3} + {(4 \div 10)}^{3} \\ \\ \\ {(5a)}^{3} + {(0.4)}^{3} \\ \\ {a}^{3} + {b}^{3} = (a + b)( {a}^{2} + {b }^{2} - ab) \\ \\ (5a + 0.4)(25 {a}^{2} + {0.16}^{2} - 2a)$