"see explanation" "using the "color (blue)"trigonometric identities" •color (white) (x)cotA=1/tanA" and "tanA=1/cotA "simplifying in 2 parts and combining" color (blue)"left hand term" (tanx+tany) (1 …

15y^2-17y+4 Use the FOIL method to multiply (5y-4) (3y-1)=15y^2-5y-12y+4 15y^2-5y-12y+4=15y^2-17y+4

Basically the same as we do with the real numbers. Perhaps if we rewrite this as: (3+2i)*(1-3i) then we mulitply 3 from the first paranthesis with the both constituents from the second. We do the same …

Jan 23, 2016 · x^2 + x + 7 >Expand using FOIL method : (- x + 2 )^2 = x^2 - 2x - 2x + 4 = x^2 - 4x + 4 y now becomes : y = x^2 - 4x + 4 + 5x + 3 Collect 'like terms' to obtain y = x^2 + x + 7

We multiply the numerators like this: (x^3-1) (2x-7) and now we need to simplify using the rainbow, FOIL, box method, or whatever way you want to do it. x^3 * 2x = 2x^4 x^3 * -7 = -7x^3 -1 * 2x = -2x …

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