Question

A(a+3)-2(a+3)= Помогите¡¡¡¡¡¡

Answer 1

Объяснение:

${a}^{2} + 3a - 2a - 6$

приведём подобные

${a}^{2} + 1a - 6$

решим через дискриминант

D=1+24=25

a1=(-1-5)/2=-6/2=-3

a2=(-1+5)/2=4/2=2

Ответ=-3;2

Answer 2

Ответ:

${a}^{2} + 3a - 2a - 6 \\ {a}^{2} + a - 6 = 0 \\ d = {1}^{2} - 4 \times 1 \times ( - 6) = 25 \\ a \ = \frac{ - 1 + 5 }{2} = \frac{4}{2} = 2 \\ a = \frac{ - 1 - 5}{2} = \frac{ - 6}{2} = - 3 \\ a = 2 \\ a = - 3$

Answer 3

Sure, I'd be happy to help you simplify the expression!

The given expression is: A(a + 3) - 2(a + 3).

To simplify, we can use the distributive property of multiplication over addition/subtraction:

A(a + 3) distributes to A * a + A * 3

Similarly, -2(a + 3) distributes to -2 * a - 2 * 3

Now the expression becomes:

A * a + A * 3 - 2 * a - 2 * 3

Next, we can combine like terms, which means combining the terms with the same variable:

(A * a - 2 * a) + (A * 3 - 2 * 3)

Now, we can factor out 'a' from the first set of parentheses and '3' from the second set:

a * (A - 2) + 3 * (A - 2)

Now, we can see that both terms have a common factor of (A - 2). So we can factor that out:

(A - 2) * (a + 3)

Thus, the simplified expression is (A - 2) * (a + 3).