exam Maths Puzzle Numerical Ability

x^2-4-0 , 3x+x^2=0, x^2-10x+2=0 , 4x^2-16x=-16

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exam Other Question

Define a variable, then write an eguation. Do not solve. For six consecutive weeks, Connie lost the same amount of weight. Six weeks ago she weighed 145 pounds. She now weighs 125 pounds. How many pounds did Connie loose each week? Add or subtract Express the result in simplest form

___2___ - ____3____
5w+10 2w-4