Question

baieti si fete hai va rog frumos ca nu prea stie nimeni exercitiul 16 sa va dau ceva

Answer 1

a) (x+4)(x+1) = x+x²+4+x = x²+2x+4

f) (4+3x)(1+x) = 4+4x+3x+3x² = 3x²+7x+4

j) 2(ab+2a²+3b²+6ab) = 2(2a²+3b²+7ab) = 4a²+6b²+14ab

n) 5x²-xy-(5x²+100x+xy+20y) = 5x²-xy-5x²-100x-xy-20y =-100x-2xy-20y

Answer 2

(4+3x)(1+x)
4+4x + 3x +3x la a 2 a
3x la a2a +7x + 4