exam Maths Puzzle Numerical Ability

factor: 3ax(2)-42a+15ax ...the x is to the 2nd power. thats why there is ( ) around it..Thank you for helping!

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exam Other Question

The area of a triangle is 105 centimeters. If the base is 14 centimeter. What is the height of the triangle melinda's dad is 30 years older than melinda now. eight years ago, his age was equal to the square of melinda's age then. how old is melinda?