Decompose the factor to find the complete point 1. Y & # 178; - 9 (x + y) & # 178; 2. (x + y) & # 178; - 16 (X-Y) & # 178; A & # 178; B & # 178; - 0.01 X & # 178; y-2xy & # 178; + y cubic 16 - (2a + 3b) &# 178; (A & # 178; + 4) &# 178; - 16A & # 178; a & # 178; (a-b) &# 178; - B & # 178; (a + b) &# 178;

Decompose the factor to find the complete point 1. Y & # 178; - 9 (x + y) & # 178; 2. (x + y) & # 178; - 16 (X-Y) & # 178; A & # 178; B & # 178; - 0.01 X & # 178; y-2xy & # 178; + y cubic 16 - (2a + 3b) &# 178; (A & # 178; + 4) &# 178; - 16A & # 178; a & # 178; (a-b) &# 178; - B & # 178; (a + b) &# 178;

y²-9(x+y)² =[y+3(x+y)][(y-3(x+y)]=(3x+4y)(-3x-2y)=-(3x+4y)(3x+2y)(x+y)²-16(x-y)²=[x+y+4(x-y)][(x+y-4(x-y)]=(5x-3y)(5y-3x)a²b²-0.01=(ab+0.1)(ab-0.1) x²y-2xy²...