Question

If x= 23 find the value of x² - zx²-7x+5
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Answer 1

Answer:

373-529z

Step-by-step explanation:

x² - zx²-7x+5

If x= 23, then

$23^{2}$-z*$23^{2}$-7*23+5

= 23(23-23z-7)+5

= 23(16-23z)+5

= 368-529z+5

=373-529z