OpenStax, Elementary Algebra 2e §6.4 Special Products · Exercise 53 · Algebra · Polynomials

Special Products · Exercise 53

Marta did the following work on her homework paper:
$(3 - y)^{2} 3^{2} - y^{2} 9 - y^{2}$
Explain what is wrong with Marta’s work.

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OpenStax, Elementary Algebra 2e · §6.4 Special Products · Exercise 53

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