Question

√128 + √18 - √98​

Answer 1

Ответ:

√128 = √(64*2) = √64 * √2 = 8√2

√18 = √(9*2) = √9 * √2 = 3√2

√98 = √(49*2) = √49 * √2 = 7√2

√128 + √18 - √98 = 8√2 + 3√2 - 7√2 = 4√2

ответ 4√2.

Объяснение:

Answer 2

√128+√18 -√98

упростить выражения

2³√2+3√2-7√2 Найдите значение

8√2+3√2-7√2 Привести подобные члены

Решение

4√2

Альтернативный Вид

Answer 3

To simplify the expression √128 + √18 - √98, we can evaluate the square roots individually and then perform the addition and subtraction.

√128 = √(64 * 2) = √64 * √2 = 8√2 √18 = √(9 * 2) = √9 * √2 = 3√2 √98 = √(49 * 2) = √49 * √2 = 7√2

Now we substitute these values back into the original expression:

8√2 + 3√2 - 7√2

Combining like terms, we have:

(8√2 + 3√2 - 7√2) = 4√2

Therefore, √128 + √18 - √98 simplifies to 4√2.