Question

if x= -3 find the value of ; 5 - 2x 5 + 4x - x² 9x² - 7x

Answer 1

Answer:

5-10+4×-3-(-3)square×9×(-3)square-7×-3

Step-by-step explanation:

Now the solving method

=5-10+4×-3+9×9×9+21

=5-10-12+81×9+21

=-5-12+729+21

=-17+729+21

=-17+750

=733