3. How many terms are in the expression 3x^6yz+x^4y^2+2xz^5-6x^2y^3-7y 6 6 5 4 3

To determine the number of terms in the expression \(3x^{6}yz + x^{4}y^{2} + 2xz^{5} - 6x^{2}y^{3} - 7y\), we need to identify each distinct part of the expression separated by a plus or minus sign.<br /><br />The expression is:<br />\[3x^{6}yz + x^{4}y^{2} + 2xz^{5} - 6x^{2}y^{3} - 7y\]<br /><br />Let's break it down:<br />1. \(3x^{6}yz\)<br />2. \(x^{4}y^{2}\)<br />3. \(2xz^{5}\)<br />4. \(-6x^{2}y^{3}\)<br />5. \(-7y\)<br /><br />Each of these is a separate term. Therefore, the expression has 5 terms.<br /><br />So, the correct answer is:<br />\[ \boxed{5} \]