Question

A(2a-1)+(a+3)(a-5)= ответ

Answer 1

A(2a-1)+(a+3)(a-5)=2a(в квадрате)-a+a(в квадрате)+3a-5a-15=3a(в квадрате)-3a-15

Answer 2

To simplify the expression A(2a-1) + (a+3)(a-5), you can start by using the distributive property (also known as the FOIL method) to expand the second term. Then, you can combine like terms if possible. Here's the step-by-step solution:

A(2a - 1) + (a + 3)(a - 5)

Step 1: Distribute A into the first term (2a - 1):

2aA - A

Step 2: Expand the second term (a + 3)(a - 5) using FOIL:

(a + 3)(a - 5) = a * a + a * (-5) + 3 * a + 3 * (-5) = a^2 - 5a + 3a - 15 = a^2 - 2a - 15

Step 3: Combine like terms:

2aA - A + a^2 - 2a - 15

Step 4: If there are any common factors, factor them out:

A(2a - 1) + a^2 - 2a - 15

Now the expression is fully simplified, and the answer is:

A(2a - 1) + (a + 3)(a - 5) = A(2a - 1) + a^2 - 2a - 15