Answer:
1.(x-7)(x-7)
FOIL METHOD
=(x)(x)=x²
=(x)(-7)=-7x
=(-7)(x)=-7x
=(-7)(-7)=-49
=x²-7x-7x-49
=x²-14x²-49
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Answer:
1.(x-7)(x-7)
FOIL METHOD
=(x)(x)=x²
=(x)(-7)=-7x
=(-7)(x)=-7x
=(-7)(-7)=-49
=x²-7x-7x-49
=x²-14x²-49