1) &A Subtract. (4k+7)-(2k+7) square

To subtract the expression $(4k+7)-(2k+7)$, we need to distribute the negative sign to each term in the second expression and then combine like terms.<br /><br />$(4k+7)-(2k+7) = 4k + 7 - 2k - 7$<br /><br />Now, we can combine the like terms:<br /><br />$4k - 2k = 2k$<br /><br />$7 - 7 = 0$<br /><br />So, the final answer is:<br /><br />$(4k+7)-(2k+7) = 2k$