factorise and find the roots of the following quadratic equation 4 y square - 9 Y is equal to hundred
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Answer:
y = 25/4, -4
Step-by-step explanation:
4y² - 9y = 100
4y² - 9y - 100 = 0
4y² + 16y - 25y -100 = 0
4y (y + 4) -25 (y + 4) = 0
(4y - 25) (y + 4) = 0
4y - 25 = 0 y + 4 = 0
4y = 25 y = -4
y = 25/4
ans) y = 25/4, -4
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