a.(3x²+4x+2)(x³+1). b.(64³-4)(a+4)(3a²-1)

a. (3x^2 +4x +2)(x^3 +1)
= 3x^5 +3x^2 +4x^4 +4x +2x^3 +2
= 3x^5 +4x^4 +2x^3 +3x^2 +4x +2

a. 3x⁵+3x²+4x⁴+4x+2x³+2
b. 64³ = 2⁶
(64³-4)(a+4)(3a²-1) = (2¹⁸-2²)(a+2²)(3a²-1)
=(2¹⁸a+2²⁰-4a-2⁴)(3a²-1)
=2¹⁸3a³-2¹⁸a+2²⁰3a²-2²⁰-12a³+4a-2⁴3a²+2⁴

semoga membantu, maaf yng b mungkin agak rumit