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Evaluate the expression x^2+8x-4 if x=3
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Evaluate the expression x^2+8x-4 if x=3

User Cathie
by
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1 Answer

1 vote

Answer:

29

Explanation:

first sub in 3 wherever x is shown

(3)^2+8(3)-4 the use bedmas (brackets,exponents,division,multiplication,addition,subtraction)

solve brakets first

(3)^2=9

8(3)=24

rewrite equation ; 9+24-4=29

User Navule
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