Question

if a + b = 9 and ab equals to 18 find a minus b​

Answer 1

Answer:

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Step-by-step explanation:

Given:

a + b = 9

ab = 18

To find:

a - b = ?

Solution:

We know that,

$(a - b)^{2} = (a + b)^{2} - 4ab$

(a - b)^2 = ( 9)^2 - 4(18)

= 81 - 72

(a-b)^2 =9

(a - b) = 9^1/2

(a - b) = 3

The value of ( a -b)is 3

HOPE U LIKE IT !!!✌✌

Answer 2

Answer:

answer is given below

Step-by-step explanation:

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