exam Maths Puzzle Numerical Ability

1-a+ab-b

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exam Other Question

Use the distributive property to remove the parentheses in the following expression. Then simplify your result if possible.

1/4 (20 + 16)
Can anyone help? Thank you so much

Solve x squar+3x+3=0 by using the Quadratic Formula (eg. 6, I)

I use College Algebra Book ISBN-13 978-0-618-77629-0