Question

c. 1.414 C-a The value of 3 a. 2.236 b. 1.732 2. The zero value of x + a is a. 1 b. -1 3. If x= 2, then the value of x2 + 3x + 5 a, 15 b. 9 C. 8​

Answer 1

Step-by-step explanation:

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Answer 2

Question 2:

2. The zero value of x + a is

i) 1

ii) -1

(then find a)

Answer:

i) a = -1

ii) a = 1

Step-by-step explanation:

i) x + a = 0 (zero value of x + a is 1)

  1 + a = 0

  a = -1

ii) x + a = 0 (zero value of x + a is -1)

  -1 + a = 0

   a = 1

Question 3:

3. If x= 2, then the value of x² + 3x + 5

a. 15

b. 9

c. 8​

Answer:

a. 15

Step-by-step explanation:

$x^{2} + 3x + 5\\given: x=2\\2^{2} + 3(2) + 5\\4+6+5\\15$

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