Perform the operation (9x^2+6x-7)+(-9x-5)

Mathematics

1 answer:

asambeis [7]2 years ago

8 0

Answer:

9 $x^{2}$ -3x-12

9 $x^{2}$ +6x-7-9x-5

(Group liked terms)

9 $x^{2}$ +6x-9x-7-5

( subtract the numbers ) -7-5= -12

9 $x^{2}$ +6x-9x-12

( add similar elements ) 6x-9x=-3x

9 $x^{2}$ -3x-12

Step-by-step explanation:

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You and your friends have decided to camp for a night. Your friend claims the area of his tent is 408 m2. Work out the area of h

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We know that
area of the tent=length*breath
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breath=170 cm----convert to m---> 170/100----> 1.70 m

find the area
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therefore

the answer is
the friend's statement is incorrect the area is 4.08 m²

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Is 9+10=21? this is free points, just say yes