Question

√28*√63=(c решением задачи)

Answer 1

$\displaystyle\bf\\\sqrt{28} \cdot\sqrt{63} =\sqrt{28\cdot 63} =\sqrt{4\cdot 7\cdot 9\cdot 7} =\sqrt{2^{2}\cdot 3^{2}\cdot 7^{2} }=2\cdot 3\cdot 7=42$

Answer 2

Ответ:вот

Объяснение:

Answer 3

To solve the expression √28 * √63, you can simplify it by using the properties of square roots. First, let's simplify each square root individually:

√28 = √(4 * 7) = √4 * √7 = 2√7

√63 = √(9 * 7) = √9 * √7 = 3√7

Now, substitute these simplified square roots back into the original expression:

√28 * √63 = (2√7) * (3√7)

To multiply these two expressions together, you can multiply the coefficients (2 * 3) and the square roots (√7 * √7):

(2 * 3) * (√7 * √7) = 6 * 7 = 42

Therefore, √28 * √63 equals 42.