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Maths Puzzle
Numerical Ability
factor by grouping with complete solution
1. x² - y² - x -y
2. x³ - y³ - x² + 2xy - y²
3. x² + xy - 2y² - x³ + y³
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book Other Question
Solve equation below using the quadratic formula.
1. x2+4x+3=0
Im hoping you can help me and you know the fomula
Thank You,
Sarah
Maude and Matilda each have a bank CD. Maude's is $1500 larger than Matilda's, but the interest rate is 1% less. Last year Maude received interest of &780, and Matilda received $