Question

simplify the following expression x square minus 21x plus 90 upon x minus 15​

Answer 1

Answer:

x² - 21x + 90 / x -15

= x² - ( 15 + 6 )x + 90 /x-15

= x² - 15x - 6x + 90 /x-15

= x ( x - 15 ) - 6 ( x - 15 ) /x-15

= ( x - 15 ) ( x - 6 ) / x- 15

=x -6

Answer 2

Step-by-step explanation:

(x²-21x+90)/(x-15)

=(x²-15x-6x+90)/(x-15)

=x(x-15)-6(x-15)/(x-15)

=(x-6)(x-15)/(x-15)

=x-6