exam Maths Puzzle Numerical Ability

Solve using quadratic formula. Having trouble any help appreciated.

5x^2+x=3

Thanks,

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exam Other Question

My daughter and I had trouble with this:

Five times the compliment of an angle less twice the angles supplement is 40 degrees. Find the measure of te supplement.

Please Help! 15. Write the verbal sentence as an equation. Then solve the eqaution

Twelve less than 2 times a number is equal to 15 minus 7 times the number

Can someone help with this equation?