4 years ago

Multiply

Mathematics

1 answer:

Nataliya [291]4 years ago

5 0

Answer:

$\large\boxed{(3x-7)(3x-5)=9x^2-36x+35}$

Step-by-step explanation:

$\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(3x-7)(3x-5)\\\\=(3x)(3x)+(3x)(-5)+(-7)(3x)+(-7)(-5)\\\\=9x^2-15x-21x+35\qquad\text{combine like terms}\\\\=9x^2+(-15x-21x)+35\\\\=9x^2-36x+35$

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Step-by-step explanation:

AB ≅ DC (Opposite sides of a parallelogram are congruent.

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