Question

please give it's solution x = 1/2

Answer 1

$\huge\green{A}\red{N}\orange{S}\pink{W}{E}\blue{R}$

$x= \frac{1}{2}\\ \\ 3x(4x-5)+3 \\=12x^{2} -15x+3 \\ \\ =12(\frac{1}{2})^{2}-15(\frac{1}{2})-3 \\ \\ = (12\times\frac{1}{4})-(15\times\frac{1}{2})-3 \\ \\ 3-7.5-3 \\ \\ \huge =7.5$

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Answer 2

3x(4x-5)+3

3×1/2(4×1/2-5)+3

3/2×1/2+3

3/2×7/6

7/4

HOPE IT HELPS YOU