exam
Maths Puzzle
Numerical Ability
The area of a rectangle is 104. Find the length and width if the length is 5 times greater than its width.
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please help me with all of these 3 problems because i don't know haow to do them at all and my older brother doesn't understand any of this either. Thank- You very much!
#32-
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Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form ax^2+bx+c=0. Solutions are -9,4.
The answer I got is x^2+13x-9=0. Is that right?