Expand and simplify (2x + 4)(3x - 5).

6x^2 - 10x + 12x - 20

6x^2 + 2x - 20

DS

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The perimeter of a right-angled triangle is 60 cm. The lengths of its sides are in the ratio 3 : 4 : 5. Calculate the area of the triangle.


Expand the brackets: (2m-3)(m+1)


(4x + 3)/(x + 1) + 2 = 8


Solve the folllowing quadratic equation: y=x^2+x-6