If the value of x=3 the find the value of 3x (4x-5)
Answers
Answered by
3
Answer:
63
Step-by-step explanation:
x=3
∴3x(4x-5)
=3[3](4[3]-5)
=9(12-5)
=9×7
=63.
Answered by
0
Answer:
63
Step-by-step explanation:
3x(4x-5)
first, open brackets
12x^2 - 15x
substitute value of x
(12 × 9) - (15 × 3)
108 - 45
= 63
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