Question

3x(4x-2)-7(3x+5)=6 plz explain how to do?​

Answer 1

Answer:

Sol:-

Distribute

12x square - 6x-7(3x+5) =6

12x square -6x-21x-35=6

Combine like terms

12 square -27x-35=6

Move terms to the left side

12x square - 27x-35-6=0

Subtract the number

12 square - 27x- 41=0

Use the quadratic formula

x= -b+ upon- √ b square - 4ac

12x square - 27x - 41 = 0

a = 12

b= -27

c= - 41

x = -(-27)+ upon - √-(-27)-4.12(-41)upon 2.12

Evaluate the exponent

x= 27 + upon - √729-4.12(-41)upon 2.12

Multiply the number

x= 27+upon- √729+1968 upon 2.12

Add the number

x= 27 + upon - √ 2697 upon 2.12

Multiply the number

x= 27+ upon- √2697 upon 24

Ans :- 27+upon - √ 2697upon24.