70.9k views
3 votes
Find the value of this expression if x=-9 x^2 +3/ x+6

2 Answers

5 votes

Answer: the value of the expression is 80

Explanation:


x^2 +3/ x+6

(-9)² + 3 / (-9 + 6) . PEMDAS: figure parentheses and exponents first

81 + 3/-3 division 3/-3 = –1

81 + (–1) .adding a negative is the same as subtracting

81 –1

80

User Emyr
by
4.4k points
6 votes

Answer:

-28.

Explanation:

(x^2 + 3) / (x + 6)

x = -9

[(-9)^2 + 3] / (-9 + 6)

= (81 + 3) / (-3)

= 84 / (-3)

= -28

Hope this helps!

User Hcabnettek
by
4.4k points