Question

Y=3x^2+4x^2+5x+7..... x0=-1​

Answer 1

{у=-1, 3×12+4×12+5х+7×0=-1

{y=-1, x=-1

(х,у)=(-17,-1)

Answer 2

To find the value of Y when x equals -1, we simply substitute -1 for x in the given expression for Y:

Y = 3x^2 + 4x^2 + 5x + 7

Y(-1) = 3(-1)^2 + 4(-1)^2 + 5(-1) + 7

Y(-1) = 3(1) + 4(1) - 5 + 7

Y(-1) = 3 + 4 + 2

Y(-1) = 9

Therefore, when x = -1, Y = 9.