Question

I WILL MARK YOU AS BRAINLIST
SOLVE ALL THIS QUESTIONS

Q1 i) Check whether (x+1)2 = 2 (x-3) is quadratic equation or not
ii) Find the value of k if the following quadratic equation have two equal roots.
kx(x-2) +6 =0
iii) Write the first term and the common difference of the given AP -5, -1, 3, 7 ,………………..
iv) Write next two terms is a=-2, d= -4
v) an=___________________

Q2.Find the root by factorization method
2x2 +x -6 = 0
Q3. Find the root of the quadratic equation , if they exists , using the quadratic formula
3x2-4√3x +4=0
Q4. How many three digit numbers are divisible by 7
Q5. Check whether 301 is a term of the list of numbers 5, 11, 17, 23, …………..
Q6. Find the 11th term from the last term ( towards the first term ) of the AP : 10, 7, 4, ……., - 62


Q7.Find two numbers whose sum is 27 and product is 182.
Q8. Solve the quadratic equation by completing the square method 5x2-6x-2=0
Q9.A train travels 360 km at a uniform speed. If the speed had been 5km/h more , it would have taken 1 hour less for the same journey . Find the speed of the train.
Q10.The 17th term of an AP exceeds its 10th term by 7 . Find the common difference.
Q11.Find the sum of first 15 terms of the list of numbers whose nth term is given by an = 3+ 2n

Q12. State and prove B.P.T theorem .
Q13. State and prove Pythagoras theorem.
Q14. Prove that the ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides.

Answer 1

Q1)

i)(x+1)2=2(x+3)

=2x+2=2x+6

=2=6

this is a wrong statement

therfore this is not  quadratic equation

ii)

kx^2-2kx+6=0

for equal roots b^2-4ac=0

4k^2-4*k*6=0

k=24+-(144*4)^1/2\8

=24+-24\8

k=0,8

Answer 2

Answer:

Step-by-step explanation:

i)(x+1)2=2(x+3)

=2x+2=2x+6

=2=6

it is not quadratic equation.