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zlopas [31]
3 years ago
14

How can Help me (a+b)^2≥4ab

Mathematics
2 answers:
irga5000 [103]3 years ago
8 0

Answer:

(a+b) ²≥4ab explanation below↓↓↓↓

Step-by-step explanation:

We know that

(a-b) ²≥0

a²-2ab+b²≥0

Move -2ab to the other side

a²+b²≥2ab

Add 2ab to both sides

a²+2ab+b²≥4ab

(a+b) ²=a²+2ab+b² therefore :

(a+b) ²≥4ab

sattari [20]3 years ago
5 0

Mark as brainlist___________________________________

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Solve for x<br><br> 7/8 of x is 14
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7÷8 of x = 14

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Answer:

a) (11/7, 9/7)

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Now we substitute y in our first equation.

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b) x -2y +11 =0

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We are going to follow the same procedure:

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Since this system of equations doesn't have a solution, the system has no point of intersection.

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