4x^2+15=16x (solve, this question is of chapter quadratic equation)
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4x² + 15 = 16x
4x² + 15 - (16x) = 0
4x² + 15 - 16x = 0
4x² - 16x + 15 = 0
4x² - 6x - 10x + 15 = 0
(4x² - 6x ) + ( -10x + 15 ) = 0
2x ( 2x - 3 ) - 5( 2x - 3 ) = 0
( 2x - 5 ) ( 2x - 3 ) = 0
2x - 5 = 0
2x - 3 = 0
x = 3/2
x = 5/2
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