3. Which expression is equivalent to (8ab-6ac-4cd)+(-5ab+11ac+2cd) 3ab-17ac-6cd -13ab-17ac-6cd 3ab+5ac-2cd 13ab+5ac-2cd

To find the expression equivalent to $(8ab-6ac-4cd)+(-5ab+11ac+2cd)$, we need to combine like terms.<br /><br />First, let's combine the terms with $ab$:<br />$8ab - 5ab = 3ab$<br /><br />Next, let's combine the terms with $ac$:<br />$-6ac + 11ac = 5ac$<br /><br />Finally, let's combine the terms with $cd$:<br />$-4cd + 2cd = -2cd$<br /><br />Putting it all together, we have:<br />$(8ab-6ac-4cd)+(-5ab+11ac+2cd) = 3ab + 5ac - 2cd$<br /><br />Therefore, the expression equivalent to $(8ab-6ac-4cd)+(-5ab+11ac+2cd)$ is $3ab+5ac-2cd$.