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# these to make it a perfect square of a binomial expression? A1) x 2 - 18x + ___? A2 ) x 2 + 2x +____ ? A3 ) 5x 2 + 30x +____ ? A4 ) x 2 - 3x + _____?...

A)What number must be added to each of these to make it a perfect square of a binomial expression?

A1) x2 - 18x + ___?

A2 ) x2 + 2x +____ ?

A3 ) 5x2 + 30x +____ ?

A4 ) x2 - 3x + _____?

**HINT ON A3 - Factor!