Answer:
Step-by-step explanation:
To find the value of the expression 5x(5x - 3) - 80 when x = 3, you can substitute the value of x into the expression and then simplify it:
Expression: 5x(5x - 3) - 80
Substitute x = 3: 5(3)(5(3) - 3) - 80
Simplify: 5(3)(15 - 3) - 80
5(3)(12) - 80
180 - 80
100
So, the value of the expression for x = 3 is 100.
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Answers & Comments
Answer:
Step-by-step explanation:
Verified answer
Answer:
To find the value of the expression 5x(5x - 3) - 80 when x = 3, you can substitute the value of x into the expression and then simplify it:
Expression: 5x(5x - 3) - 80
Substitute x = 3: 5(3)(5(3) - 3) - 80
Simplify: 5(3)(15 - 3) - 80
5(3)(12) - 80
180 - 80
100
So, the value of the expression for x = 3 is 100.
Step-by-step explanation:
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