Question

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Answer 1

Step-by-step explanation:

question 1 :-

(i) by dividing x+2 by x²+mx+14

[answer in attachment]

m=9

(ii) quadrant 2

(iii) 29²- 28²

=(29-28)(29+28)

=1×57=57

(iv) 60=3a

a=20

area=√3/4(20)²

=√3/4×400

=100√3 m²

(v) 0

(vi) (a+b+c) ²=a²+b²+c²+2ab+2bc+2ca

(9)²=a²+b²+c²+2(40)

81-80=a²+b²+c²

a²+b²+c²=1

Hope it helps uhh cute chocolate

Answer 2

Answer:

Q1. 1 attached.

2. Third.

3.1

4.100√3m2.

5.Answer: For all constants the degree is always zero. Therefore the degree for the polynomial root 7 is "zero". Ans :0

6.attached

2. (100 +4)^2 a+b = a^2 + 2ab +b^2

3. Attached.

4. Attached.

5.Their sum will be, x+y=10+2√5+10-2√5=20, which is rational.

6.Again by pythagoras theorem we get OC = root 3. Then by compus taking radius =OC, draw an arc so that it cuts the number line at D. Then the distance OD will be the square root of 3. (attached).

Step-by-step explanation:

Hope it will help you.