Question

Y(4y+3)+2(y-y²), если y=3

Answer 1

Y(4y+3)+2(y-y²)=4y²+3y+2y-2y²=2y²+5y=y(2y+5)
у=3
y(2y+5)=3(2×3+5)=3(6+5)=3×11=33
Ответ: 33

Answer 2

To evaluate the expression Y(4y+3) + 2(y-y²) when y = 3, simply substitute y with 3 and perform the calculations:

Y(4y + 3) + 2(y - y²)

Let's put y = 3:

Y(4*3 + 3) + 2(3 - 3²)

Now, solve the inner expressions first:

Y(12 + 3) + 2(3 - 9)

Y(15) + 2(-6)

Now, since we don't know the value of Y, we can't further simplify the expression. The result is:

15Y - 12

So, the expression Y(4y+3) + 2(y-y²) when y = 3 is 15Y - 12.