Subtract 7√5−4√5 .(1 point)
The expression 7√5 - 4√5 can be simplified by combining like terms:
7√5 - 4√5 = (7 - 4)√5 = 3√5
So, the answer is 3√5.
To subtract 7√5 - 4√5, we need to combine like terms. Since both terms have the same radical (√5), we can subtract the coefficients in front of the radical.
7√5 - 4√5 = (7 - 4)√5
Simplifying the coefficients:
7 - 4 = 3
Therefore, the final answer is:
3√5
To subtract 7√5 - 4√5, we first need to identify the like terms. In this case, both terms have the square root of 5, so they can be combined. To subtract them, we simply subtract the coefficients in front of the square roots while keeping the square root intact.
7√5 - 4√5 = (7 - 4)√5 = 3√5
Therefore, the result of subtracting 7√5 - 4√5 is 3√5.