Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
[tex](a + b) {}^{3} \\ = (a + b) \times (a + b) {}^{2} \\ = (a + b)(a {}^{2} + 2ab + b {}^{2} ) \\ = a(a {}^{2} + 2ab + b {}^{2} ) + b(a {}^{2} + 2ab + b {}^{2} ) \\ = a {}^{3} + 2a {}^{2} b + ab {}^{2} + ba {}^{2} + 2ab {}^{2} + b {}^{3} \\ = a {}^{3} + 3a {}^{2} b + 3ab {}^{2} + b {}^{3} [/tex]
✐ (a + b)³ = a³ + 3a²b + 3ab² + b³
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# ꧁❣ RainbowSalt2²2² ࿐
