p(x)=x² + x + 1
To find p(7), simply substitute x= 7 in the above
p(7) = 7² + 7 + 1
= 49 + 7 + 1
= 57
p(-4)
simply substitute x =-4 in the equation above
p(-4)= (-4)² + (-4) + 1
=`16 - 4 + 1
= 13
To find Q(4), simply substitute x=4 in;
Q(x) = 5x² - 1
Q(4) = 5(4)² - 1
= 5(16) - 1
=80 - 1
= 79
T find Q(-10), substitute x =-10 in the equation above
Q(-10) = 5(-10)² - 1
= 5(100) - 1
= 500 - 1
=499