Question

calculati
a) 3(x-1)(x+4)-2(x²-5)
b) (15x²-10xla a patra-25x³):(-5x³)+(2x+1)(x-4)
c)(x+5)(6x-1)+24xla apatra:(-4x²)
d)3x[x(x+5)-2x²:x
e)2x+3y-[5(x+y)-3(x-y)]+7y
f)(2x+1)(3x-2)-(6xla aptara-2x³+3x²):x²

Answer 1

a) (3x-3)*(x+4)-2x la patrat +10= 3x la patrat +12x-3x-12-2x la patrat +10=x la patrat+9x-2
b)