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Solve 5x^2 - 4x - 3 =0. Give answers to 3 significant figures
1.27 and -0.472
MJ
Answered by
Marcus J.
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How do I expand double brackets?
How do I solve simultaenous equations? e.g. 2x -5y =11 and 3x+2y=7
Make r the subject of the formula: 1/r -1/p = 1/t
Insert one pair of brackets so that this calculation is correct; 3 x 6 + 5 - 1 = 32
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