Answer:
b. [tex]\displaystyle 90 - 9p^2[/tex]
a. [tex]\displaystyle -9[-10 + p^2][/tex]
Step-by-step explanation:
b. [tex]\displaystyle 90 - 9p^2 = -3p^2 + 30 - 6p^2 + 60 = -3p(p - 10) - 6p(p - 10)[/tex]
a. [tex]\displaystyle -9[-10 + p^2] = 90 - 9p^2[/tex]
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