Simplify 3x (4x-5) +3 and find its value .
for x=3
Answers
Answered by
12
Answer:
3x(4x−5)+3=12x2−15x+3
x=3 gives the value 12(9)−15×3+3
=108−45+3
=66
Answered by
112
..Question..
☯︎ Simplify ✈︎ 3x ( 4x - 5 ) + 3
..Answer..
☯︎ Given ,
ㅤㅤㅤㅤ✈︎ x = 3
•°• A/Q
➪ 3x ( 4x - 5 ) + 3
➪ 3x × ( 4x - 5 ) + 3
➪ (3 × 3) × ( 4•3 - 5 ) + 3
➪ 9 × ( 12 - 5 ) + 3
➪ ( 9 × 12 ) - { 9 × ( - 5 )} + 3
➪ 108 - ( - 45 ) + 3
➪ 108 + 3 - ( - 45 )
➪ 111 - ( - 45 )
➪ 111 + 45
➪ 156 ㅤㅤㅤㅤㅤㅤAns........
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ㅤㅤㅤ☯︎ BODMAS meaning :
➪ Bracket of Division Multiplication Addition and Subtraction
ㅤㅤㅤ☯︎ BODMAS in serial :
➪ 1 > Division
ㅤ 2 > Multiplication
ㅤ 3 > Addition
ㅤ 4 > Subtraction
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