Answer:
65
Step-by-step explanation:
5^2=25
3x25= 75
75- (2x5)
Q. Evaluate 3x²- 2x, when x=5?
The value of 3x²- 2x, when x=5 is 65.
3x²- 2x
= [3 x (5)²] - [2 x (5)]
= [3 x (25)] - [2 x (5)]
= [75] - [10]
= 65
Hence, the value of 3x²- 2x, when x=5 is 65.
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