Question

- positive and one negative 7. The zeroes of the quadratic polynomial x2 + 7x + 10 are : (D) both equal. (A) -5 and -2 (C) 5 and 2 (B) -5 and 2 8. Zeroes of the quadratic polynomial x2 - 5 is : (D) none of these. (A) V5,- 15 (B) 15,5 (C) 5, -5 (D) none of these. 9. Product of ​

Answer 1

Answer -

x² + 7x + 10

So By Middle Term Splitting

x² + 7x + 10

x ( x + 2 ) + 5 ( x + 2 )

( x + 5 ) ( x + 2 )

x + 5 = 0 x + 2 = 0

x = - 5 x = - 2

Hence Proof

So , Option A Will Be Correct Answer

( -5 & - 2 )

Answer 2

positive and one negative 7. The zeroes of the quadratic polynomial x2 + 7x + 10 are : (D) both equal. (A) -5 and -2 (C) 5 and 2 (B) -5 and 2 8. Zeroes of the quadratic polynomial x2 - 5 is : (D) none of these. (A) V5,- 15 (B) 15,5 (C) 5, -5 (D) none of these. 9. Product of