Question

(y+2) (y-2)+(2y-6)²+(y+3)²
(3x+5) (3x-5)+(x-8)²
(2a-7)²+(a+10)²-(2a-1) (2a+1)
(2p+8)²+(2p-4) (2p+4)+(p-6)²

Answer 1

A) (y+2) (y-2)+(2y-6)²+(y+3)²
b) (3x+5) (3x-5)+(x-8)²
c) (2a-7)²+(a+10)²-(2a-1) (2a+1)
d) (2p+8)²+(2p-4) (2p+4)+(p-6)²


a) y2-4 + 4y2-12y+36+y2+6y+9=6y2-6y+41
b) 9x2+x2-16x+64=10x2-16x+64
c) 4a2-28a+49+a2+20a+100-4a2-1=a2-8a+148
d) 4p2+32p+64+4p2-16+p2-12p+36=9p2+20p+84

ps. mam nadzieję, że oto Ci chodziło ;)