Question

因式分解 x2-y2+4x+6y-5

x、y后面的都是指数，注意是因式分解，要有过程的哈，解答题！
大虾们帮忙啦！T_T在线等的

Answer 1

x2-y2+4x+6y-5
=X^2+4X+4-(Y^2-6Y+9)
=(X+2)^2-(Y-3)^2
=(X+2-Y+3)(X+2+Y-3)
=(X-Y+5)(X+Y-1)

Answer 2

=x2+4x+4-（y6-6y+9）
=（x+2）平方-（y-3）平方
=（x+2+y-3)(x+2-y+3)=(x+y-1)(x-y+5)

Answer 3

x² - y² + 4x + 6y - 5
= x² + 4x + 4 - y² + 6y - 9
= (x² + 4x + 4) - (y² - 6y + 9)
= (x + 2)² - (y - 3)²
= (x + 2 + y - 3)(x + 2 - y + 3)
= (x + y - 1)(x - y + 5)