Question

(2a2−0,3b2)⋅(2a2+0,3b2)

Answer 1

Відповідь:4а^4-0.09b^4

Покрокове пояснення:

За формулою скороченого множення: (a-b)(a+b)=a^2-b^2

^ - степінь

Answer 2

It looks like you're asking for the result of the product of the expressions (2a^2 - 0.3b^2) and (2a^2 + 0.3b^2). Let's simplify this expression step by step:

(2a^2 - 0.3b^2) * (2a^2 + 0.3b^2)

First, we can use the distributive property (FOIL method) to multiply the terms:

= 2a^2 * 2a^2 + 2a^2 * 0.3b^2 - 0.3b^2 * 2a^2 - 0.3b^2 * 0.3b^2

Now let's simplify each term:

= 4a^4 + 0.6a^2b^2 - 0.6a^2b^2 - 0.09b^4

Notice that the middle terms cancel out (0.6a^2b^2 and -0.6a^2b^2), leaving us with:

= 4a^4 - 0.09b^4

So, the product of (2a^2 - 0.3b^2) and (2a^2 + 0.3b^2) simplifies to 4a^4 - 0.09b^4.