Question

Using algebraic identities find the product of ( x - 5) and (x - 7)

Answer 1

Answer:

$(x + a)(x + b ) = {x}^{2} + x(a + b) + ab$

${x}^{2} + x( - 5 - 7) + ( - 5)( - 7)$

${x}^{2} + x( - 12 ) + (35)$

${x}^{2} - 12x + 35$

Step-by-step explanation:

Hope it helps you out......

Answer 2

Step-by-step explanation:

(x-a)(x-b) =x square +(a+b)x -ab

(x-5)(x-7) =

x square + ( -5 +(-7))x -(-5*-7)

x square -12x -35