Question

( x2 -3x + 7 ) ( x2 - y2 )​

Answer 1

Answer:

$(2x - 3x + 7)(2x - 2y)$

$( - x + 7)(2x - 2y)$

$- x(2x - 2y) + 7(2x - 2y)$

$- 2 {x}^{2} + 2xy + 14x - 14y$

Answer 2

Step-by-step explanation:

(x²-y²)(x²-3x+7)

x²(x²-3x+7)-y²(x²-3x+7)

x⁴-3x³+7x²-x²y²+3xy²-7y²