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mixer [17]
3 years ago
13

Super confused definitely need help on this

Mathematics
2 answers:
Marat540 [252]3 years ago
6 0

Answer:

(x-5)(x+8)=x^2+3x-40

Step-by-step explanation:

So we have the expression:

(x-5)(x+8)

To multiply, distribute the left to the terms on the right:

=(x-5)(x)+(x-5)(8)

Distribute:

=(x^2-5x)+(8x-40)

Combine like terms:

=(x^2)+(-5x+8x)+(-40)

Simplify:

=x^2+3x-40

Therefore:

(x-5)(x+8)=x^2+3x-40

notka56 [123]3 years ago
6 0

Answer:

Step-by-step explanation:

x^2 + 8x - 5x - 40

x^2 + 3x - 40

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They also tell you the perimeter is 48 metres.

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So the equation of the perimeter is:

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