Question

(3x+2)•(5x+4)=(3x+2)^2

Answer 1

Ответ:

(3х+2)•(5х+4)=(3х+2)²

(3х+2)•(5х+4)=(3х+2)•(3х+2) мы разложили квадрат

и там и там у нас (3х+2), а значит их можно сократить.

5х+4=3х+2. переносим икс к иксам, числа к числам

5х-3х=2-4

2х=-2

х= -2/2

х= -1

теперь подставим вместо икса

5х+4=3х+2

5•(-1) +4=3•(-1)+2

4-5=2-3

-1 = -1

Надеюсь понятно объяснил))

Answer 2

Let's simplify the expression step by step:

(3x + 2) * (5x + 4)

First, we can use the distributive property to multiply each term in the first parentheses by each term in the second parentheses:

= (3x * 5x) + (3x * 4) + (2 * 5x) + (2 * 4)

Now, perform the multiplications:

= 15x^2 + 12x + 10x + 8

Combine like terms:

= 15x^2 + 22x + 8

Now, let's simplify (3x + 2)^2:

(3x + 2)^2 = (3x + 2)(3x + 2)

Use the distributive property again:

= (3x * 3x) + (3x * 2) + (2 * 3x) + (2 * 2)

Perform the multiplications:

= 9x^2 + 6x + 6x + 4

Combine like terms:

= 9x^2 + 12x + 4

Now, compare the two expressions:

15x^2 + 22x + 8 ≠ 9x^2 + 12x + 4

So, (3x + 2) * (5x + 4) is not equal to (3x + 2)^2.