Q: How do you factorise y squared minus 10y plus 16?

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4

(5x-9)(2x-1) when factored

If you mean: -10x-10y = -20 then x intercept is at (2, 0) and y intercept at (0, 2)

y = ½ (6y = 3)

Y-8x plus 9y equals 10y-8x.

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10y2 - 15y2 = -5y2

That would depend on the plus or minus values of 7x and 10y of which none have been given.

4

(5x-9)(2x-1) when factored

10y^2 -12

x2 + 10y + 25 doesn't factor neatly. If that was x2 + 10x + 25, it would factor to (x + 5)(x + 5) or (X + 5)2

10y plus 40 equals 50y.

10y = 9y + 4, so y = 4

15y+14=2(5y+6) 15y+14=10y+12 15y+14-14=10y+12-14 15y=10y-2 15y-10y=10y-2-10y 5y=-2 y=-2/5

maximum value of 6y+10y

10y = 2y - 6y + 7 10y =-4y + 7 10y +4y = 7 14y = 7 y = 1/2 = .5

It is: 7x+10y