Question

what must be subtracted from x^3 -6x^2-15x+80 x^2 +x=12

Answer 1

for the answer u must subtract  x^3 -6x^2-15x+80 and x^2 +x=12,

so ans will be

=x^2 +x - 12 - ( x^3 -6x^2-15x+80)

= x^2 +x -12 -x^3 +6x^2 +15x -80

= -x^3 + 7x^2 + 16x -92

now multiply whole eq with minus.

that is , x^3 - 7x^2 - 16x +92 shd be subtracted.

Answer 2

Hope it may help you

Mark as brainlist

Please