Question

solve this two questions with ans also only last question than I mark as brilliant​

Answer 1

Answer:

$- \frac{7}{2}$

Step-by-step explanation:

${( - 3)}^{p - 3} . {( - 3)}^{ - 3p + 1} = {( - 3)}^{5} \\ {( - 3)}^{(p - 3) + ( - 3p + 1)} = {( - 3)}^{5} \\ copairing \: their \: powers \\ (p - 3) + ( - 3p + 1) = 5 \\ p - 3 - 3p + 1 = 5 \\ - 2p - 2 = 5 \\ - 2p = 5 + 2 \\ p = \frac{7}{ - 2 } \\ p = - \frac{7}{2}$