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3 years ago

Simplify. (x−3)( x^2−4x−7)

Mathematics

2 answers:

Semmy [17]3 years ago

6 0

If you simplify (x-3)(x^2-4x-7)
answer: x^3-7x^2+5x+21

Shkiper50 [21]3 years ago

5 0

Answer:

Simplification of the expression (x−3)( x^2−4x−7) is x³ -7x² + 5x + 21 .

Step-by-step explanation:

As the expression given in the question be as follow .

= (x−3)( x²−4x−7)

simplify the above

= x (x²-4x-7)-3 (x²-4x-7)

Now open the bracket

= x³ - 4x² -7x - 3x² + 12x + 21

= x³- 4x²-3x²-7x + 12x + 21

= x³ -7x² + 5x + 21

Thus the simplification of the expression (x−3)( x^2−4x−7) is x³ -7x² + 5x + 21 .

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