Question

simply the following: 1) (2a+5)³+(2a-5)³​

Answer 1

Answer:

good morning to you and happy

Answer 2

༒࿐៚ Answer ༒࿐៚

$(2a + 5 {)}^{3} + (2a - 5 {)}^{3} \\ \\ use \\ (x + y {)}^{3} = {x}^{3} + 3 {x}^{2} + {y}^{2} \\ to \: expand \: the \: expression \\ \\ 8 {a}^{3} + 60 {a}^{2} + 150a + 125 + (2a - 5 {)}^{3} \\ 8 {a}^{3} + 60 {a}^{2} + 150a + 125 + 8 {a}^{3} - 60 {a}^{2} + 150a - 125 \\ 8 {a}^{3} + 150a + 125 + 8 {a}^{3} + 150a - 125 \\ 8 {a}^{3} + 150a + 8 {a}^{3} + 150a \\ 16 {a}^{3} + 15a + 150a \\ 16 {a}^{3} + 300a$

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