Question 296070
9x^2-16     (answer my son has is:) (3x + 2)(3x - 2)
(3x-4)(3x+4) ans.
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x^2 + 14x + 49 (answer my son has is:) (x + 7)to the second power
(x+7)^2 ans.
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x^2 + 1/2x + 1/16 (answer my  son has is:) (x + 1/4) to the second power
(x+1/4)^2 ans.