wykonaj mnożenie i zredukuj wyrazy podobne. a)(2t+1)(1-3t) b)(3ab-7)(3-7ab) c)(-x+y)(5x+6y) d)(x+5y)(7x-y) e)(2x⁴-y)(x⁴+y) f)(ab-a)(2ab+6a) proszę muszę mieć to dzisiaj

a)(2t+1)(1-3t)= 2t-6t2+1-3t= -4t2-3t+1 b)(3ab-7)(3-7ab)= 9ab-21a2b2-21+49ab= 58ab-21a2b2 c)(-x+y)(5x+6y)=-5x-6y+5xy+6y2 d)(x+5y)(7x-y)= 7x2-xy+35y-5y2 e)(2x⁴-y)(x⁴+y)= 2x16+2x4y-x4y-y2= 2x16 +x4y-y2 f)(ab-a)(2ab+6a)= 2a2b2+6a2b-2a2b-6a2

a) (2t+1)(1-3t)= 2t-6t²+1-3t -t-6t²+1 b) (3ab-7)(3-7ab) 9ab-21ab²-21+49ab 58ab-21ab²-21 c) (-x+y)(5x+6y) -5x²-6xy+5xy+6y² -5x²-xy+6y² d)(x+5y)(7x-y) 7x²-xy+35xy-5y² 7x²+34xy-5y² e)(2x⁴-y)(x⁴+y) 2x⁸-2yx⁴-yx⁴-y² 2x⁸-3yx⁴-y² f)(ab-a)(2ab+6a) 2ab²+6a²b-2a²b-6a₂ 2ab²+4a²b-6a²