Question

25 m square + 30 M + 9​

Answer 1

Step-by-step explanation:

25m² + 30m + 9 = 0

= 25m² + 15m + 15m + 9

= 5m(5m + 3) + 3(5m + 3)

= (5m + 3)(5m + 3)

Zeroes are -

5m + 3 = 0 and 5m + 3 = 0

m = - 3/5 and m = - 3/5

Checking -

Substituting the value of m = - 3/5 on 25m² + 30m + 9 = 0

= 25(-3/5)² + 30 × -3/5 + 9 = 0

= 25 × 9/25 - 18 + 9 = 0

= 9 - 18 + 9 = 0

0 = 0

LHS = RHS

Proved..

Hence,

The value of m = -3/5 is Absolutely Correct.