Product of (4x-7)(4x+7) is [tex](4x)^{2} -7^{2}[/tex] or [tex]16x^{2}-49[/tex].
A product is a number or a quantity obtained by multiplying two or more numbers together.
According to the question
Product of (4x-7)(4x+7)
= 4x(4x) + 4x(7) - 7(4x) - 7(7)
= [tex]16x^{2} +28x-28x-49[/tex]
= [tex]16x^{2}-49[/tex]
= [tex](4x)^{2} -7^{2}[/tex]
It is basically represent (a + b) (a - b) = [tex]a^{2} -b^{2}[/tex]
Hence, Product of (4x-7)(4x+7) is [tex](4x)^{2} -7^{2}[/tex] or [tex]16x^{2}-49[/tex].
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