(4x + 5)(4x + 5)
(4x + 3)(4x + 3) (4x + 3)2
(4x + 7)(16x2 - 28x + 49)
16x2 - 56x + 49 = (4x - 7)2
y = -16x2 + 342At the x-intercepts, y=0-16x2 + 342 = 016x2 = 342x2 = 342/16 = 21.375x = plus and minus sqrt(21.375) = approx. plus and minus 4.6233 (rounded)
If by "What is the answer to", you mean "How do you factor", then we can solve it as follows: x2 + 13xy + 36y2 = x2 + 4xy + 9xy + 36y2 = x(x + 4y) + 9y(x + 4y) = (x + 9y)(x + 4y)
factor the trinomial 16x^2+24x+9
-16x2 + x + 8 = -1/64(32x - 1 - √513)(32x - 1 + √513)
(4x + 5)(4x + 5)
(4x - 3)(4x - 1)
16x2 + 40x + 25 = 16x2 + 20x + 20x + 25 = 4x(4x + 5) + 5(4x + 5) = (4x + 5)(4x + 5) = (4x + 5)2
(4x + 3)(4x + 3) (4x + 3)2
(4x + 7)(16x2 - 28x + 49)
If you can't factor it easily, use the quadratic formula.
4x3 + 16x2 - 180x = 4x(x2 + 4x - 45) = 4x(x + 9)(x - 5)
4x+516x2 + 40x + 25= (4x + 5) (4x + 5)
(3x - y)(x - 3y) (6y - 11)(6y + 11)