7√5—4√5
To simplify the expression 7√5—4√5, notice that both terms have the same radical, which is √5.
Therefore, we can combine like terms by subtracting the coefficients:
7√5—4√5 = (7—4)√5 = 3√5
Thus, 7√5—4√5 simplifies to 3√5.
To solve 7√5—4√5, we can combine like terms. Since both terms have a square root of 5, we can subtract the coefficients:
7√5—4√5 = (7—4)√5
Simplifying further, we have:
(7—4)√5 = 3√5
Therefore, 7√5—4√5 simplifies to 3√5.
To solve the expression 7√5 - 4√5, we can simplify it by combining like terms.
Given that both terms have the same radicand (√5), we can add or subtract the coefficients (numbers in front of the square root symbol) while keeping the radicand the same.
Therefore, 7√5 - 4√5 is equal to (7-4)√5.
Simplifying further, we get:
(7-4) = 3
Therefore, 7√5 - 4√5 simplifies to 3√5.