1.

(iv) 4x2-25x-21-0

Answer»

Solution:x = 7 or x = -3/4

Explanation:Consider the given equation 4x² - 25 x - 21= 0Split the middle term=> 4x² - 28x + 3x - 21= 0Regroup the terms=> 4x(x - 7) + 3(x - 7) = 0=>. (x - 7)(4x + 3) = 0=> x = 7 or x = -3/4



Discussion

No Comment Found