Question

(3x+5)(x - 2) =3x2 + x - 4.​

Answer 1

(3х+5)(х-2)=3х2+х-4

3х^2-6х+5х-10=3х^2+х-4

3х^2-6х+5х-10-3х^2-х+4=0

-2х-6=0

-2х=6

х=6/-2

Х=-3

Answer 2

Actually, the expression you provided, (3x + 5)(x - 2), does not equal 3x^2 + x - 4. Let's go through the correct multiplication step by step:

(3x + 5)(x - 2)

To multiply these two binomials, you can use the distributive property (also known as FOIL):

First: 3x * x = 3x^2 Outer: 3x * (-2) = -6x Inner: 5 * x = 5x Last: 5 * (-2) = -10

Now, combine the results:

3x^2 - 6x + 5x - 10

Combine like terms:

3x^2 - x - 10

So, the correct product of (3x + 5)(x - 2) is 3x^2 - x - 10, not 3x^2 + x - 4.