Algebraic expressions can be expanded - multiplied by one or more terms. They may also be simplified – made shorter and simpler by collecting like terms. Multiply \(-3\) by \(-4\) using the rule for ...

Fifty years ago Bob Moses organized volunteers to register voters in Mississippi during the Freedom Summer. And for decades, Moses has been fighting for civil rights as an educator. He won a MacArthur ...

Looking for the answers to ax² + bx + c = 0? A mathematician has rediscovered a technique that the ancient Babylonians used. By Kenneth Chang and Jonathan Corum The quadratic equation has frustrated ...