sederhanakanlah: a. (2x+3)^2= b. (2x-5)^2= c. (y+3)^2-(y-3)^3= d.(3p+2)^3=

a. (2x+3) (2x+3) = 4x² + 12x + 9
b. (2x-5) (2x-5) = 4x² - 20x + 25
c. ((y+3)(y+3)) - ((y-3)(y-3)(y-3))
= (y²+6y+9) - ((y²-6y+3)(y-3))
= (y²+6y+9) - (y³-6y²+3y -3y² + 18 y -9)
= y²+6y+9-y³+6y²-3y+3y²-18y+9
= -y³ +10y² -15y +18
d. (3p+2)(3p+2) = 9p² + 12p +4 (3p+2)
= 27p³ + 36p² +12p + 18p²+24p+8
= 27p³ +54p² +36p +8