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dimulka [17.4K]
3 years ago
10

Sprawdz, ktora liczba spelnia rownanie: -2x+7=-6x-5 . Ktora jest dobra odpowiedzia -3, 3 -2 czy 2 ? Prosze pomuszcie :'(

Mathematics
1 answer:
schepotkina [342]3 years ago
7 0

Answer:

x= -3

Step-by-step explanation:

hello :

-2x+7=-6x-5

-2x+7+6x=-6x-5 +6x

4x+7=-5

4x+7-7=-5-7

4x= -12

x= -12/4

x= -3

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Factor completely 3x3 − 6x2 − 24x. 3x(x − 4)(x + 2) 3x(x + 4)(x − 2) 3x(x − 3)(x − 2) 3x(x + 3)(x − 2)
inysia [295]

Answer:

3x(x - 4)(x + 2)

Step-by-step explanation:

Given

3x³ - 6x² - 24x ← factor out common factor of 3x from each term

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7 0
3 years ago
What algebraic expression must be added to the sum of 3x2 +4x+8 and 2x2−6x+3 to give 9x2−2x−5 as the result?
vesna_86 [32]

Answer:

4x^2-16

Step-by-step explanation:

-This is an addition/subtraction problem.

#We subtract the sum of the first two expression from the third expression:

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Hence, the expression 4x^2-16 must be added to the first two.

7 0
3 years ago
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