Question

please give me correct answer​

give answer in English

Answer 1

Answer:

a = 7

Step-by-step explanation:

-2 is zero (root of this equation) x^2 + ax + 10 =0

So, it will satisfy the given equation.

(-2)^2 + a(-2) + 10 =0

4 -2a +10 =0

2a = 14

a = 7

Answer 2

Answer:

I) a=3

ii) x=14 , a=28 , b=56 , c=112

iii) 35/10 = 0.7

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