For this case we have the following polynomial:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/i95pa5p6xvxe36azn86i6ox6sf13cygmkq.png)
The polynomial has no real solutions when it is met:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/m7pn7kc5xsuky2uwgpn7bmqfxl9fzckqp1.png)
Substituting values we have:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/afmbygyimb5w5isv84uen9zbaonat7ru2s.png)
Rewriting we have:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/j8rb5lc7m8kwb01k6s61tmc25dpd84s87l.png)
Clearing the value of m we have:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/d21b7lhlec8x2vhncsg7ikdjo1fw8adbyu.png)
![m <2√(21)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/o1nf0b8wstzr7vmwa8pt9cakmjmsl6nxg4.png)
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/201be4mr9bzrkqsjmt5dfl4myuwka5hw41.png)
Then, the value of the largest positive integer for which the equation has no real solution is:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/l9y0w3rwso227gzqqjaf48iumwdbl1vdmc.png)
Answer:
The largest positive integer value of that is the equation has no real solutions is:
![m = 9](https://img.qammunity.org/2019/formulas/mathematics/middle-school/rapqcyl5ft96njyhy3cjo9uu6a1rn6o7qs.png)