Question

(3a3−0,7b2)⋅(3a3+0,7b2) там степени есть

Answer 1

Ответ:

9a6-0,49b4

Пошаговое объяснение:

(3a3−0,7b2)⋅(3a3+0,7b2) = (3a3)2 - (0.7b2)2 = 9a6-0,49b4

Answer 2

Yes, the expression (3a^3 - 0.7b^2) ⋅ (3a^3 + 0.7b^2) contains exponents (also known as powers). The exponents are represented by the caret symbol (^). In this case, "a^3" means "a cubed" or "a raised to the power of 3", and "b^2" means "b squared" or "b raised to the power of 2".

Let's simplify the expression using the distributive property:

(3a^3 - 0.7b^2) ⋅ (3a^3 + 0.7b^2)

Using the formula (a + b) ⋅ (a - b) = a^2 - b^2, we can see that the expression has a difference of squares form:

(3a^3)^2 - (0.7b^2)^2

Now, we can calculate the squares:

(3a^3)^2 = (3^2) * (a^3)^2 = 9a^6

(0.7b^2)^2 = (0.7^2) * (b^2)^2 = 0.49b^4

So, the simplified expression is:

9a^6 - 0.49b^4