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

1 answer:

lord [1]4 years ago

6 0

Answer:

Step-by-step 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

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