Expand the expression x(5x+3) -1 and find its values for x = 3
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Answer:
= x(5x+3)-1
= 5x²+3x -1
substitute x = 3 in given equation
= 5(3)²+3×3-1
= 5×9 + 9-1
= 45+8
= 53
hope this answer will help you .
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