Question

Упростите :(3y-5)(y-2)-4(2y-1)+9(y-2)

Answer 1

Ответ: 3у(в квадрате) - 10у + 28

Объяснение:

Answer 2

3y^2-6y-5y+10-8y+4+9y-18=3y^2-10y-4

Answer 3

Let's start by simplifying each term in the expression:

• (3y-5)(y-2) can be expanded using FOIL (First, Outer, Inner, Last) method:

  (3y-5)(y-2) = 3y^2 -6y -5y +10 = 3y^2 -11y +10

• -4(2y-1) can be simplified by distributing the -4:

  -4(2y-1) = -8y + 4

• 9(y-2) can be simplified in the same way:

  9(y-2) = 9y -18

Now we can substitute these simplified expressions back into the original expression and combine like terms:

(3y-5)(y-2)-4(2y-1)+9(y-2)

= (3y^2 -11y +10) -8y + 4 + 9y -18

= 3y^2 -10y -4

Therefore, the simplified form of the expression is 3y^2 -10y -4.