4 years ago

Answer this please and thanksss

Mathematics

2 answers:

Alex777 [14]4 years ago

4 0

Answer:

Option D, x² + 4x - 21

Step-by-step explanation:

Using FOIL;

x * x = x²

x * (-3) = -3x

7 * x = 7x

7 * (-3) = -21

Therefore; x² + (-3x) + 7x - 21

=> If simplified:

=> x² + 4x - 21

Hope this helps!

IrinaVladis [17]4 years ago

3 0

Answer:

x^2+4x-21

Step-by-step explanation:

hope it helps

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