Question

1). 4а (а - 2b);2). (х+1)(х-2)​

Answer 1

Ответ:

1) 4a²-8ab

2)x²+x-2

Пошаговое объяснение:

1) 4a(a-2b)=4a²-8ab

2)(x+1)(x-2)=x²+x-2

Answer 2

Ответ:

1)4a(a-2b)=4 a²-8ab

2)(x+1)(x-2)=x²-x-2

Answer 3

It looks like you've provided two algebraic expressions, and I can help you simplify them:

1. 4a(a - 2b):

To simplify this expression, you can use the distributive property (also known as FOIL for binomials). Multiply 4a by each term inside the parentheses:

4a * a = 4a^2 4a * (-2b) = -8ab

So, 4a(a - 2b) simplifies to 4a^2 - 8ab.

2. (x + 1)(x - 2):

To simplify this expression, again use the distributive property (FOIL):

(x + 1)(x - 2) = x(x) + x(-2) + 1(x) + 1(-2)

Now, multiply the terms:

x^2 - 2x + x - 2

Combine like terms:

x^2 - x - 2

So, (x + 1)(x - 2) simplifies to x^2 - x - 2.