9x2-15xy-6y2 - What is the expression for (x-2y)(9x+3y)?, a2+ab - Find the area of the square when width=a, height=a+b., 1 and 2 - What is the common factors for 8b and 6c?, (x-1)(x-3) - Simplify 3x2-12x+9., z=6x+7. - Given that r=2x+1and z=3r+4, find the value of z in terms of r., 3x2+0.5x-1 - A triangle has a base that is (3x+2) and a height that is (2x-1) units high. Express the area of triangular in terms of x. , (t-7x)/8y - Given an equation is t=8vy+7x. Calculate the the value of v., w=-1 - w=-1w=(x+2y)/(2x-1). Determine the value of w when x=1, y=-1.,

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