(x−3)(x+3)2(x+3)=x−32the fraction with numerator open paren x minus 3 close paren open paren x plus 3 close paren and denominator 2 open paren x plus 3 close paren end-fraction equals the fraction with numerator x minus 3 and denominator 2 end-fraction ✅ The simplified expression is
x2−9=(x−3)(x+3)x squared minus 9 equals open paren x minus 3 close paren open paren x plus 3 close paren Use the formula
xv=−-42⋅1=42=2x sub v equals negative the fraction with numerator negative 4 and denominator 2 center dot 1 end-fraction equals four-halves equals 2 Plug back into the original equation: Use the formula
ГДЗ по алгебре за 7 класс, решебник и ответы онлайн Use the formula
Factor out the greatest common factor, which is
yv=(2)2−4(2)+5=4−8+5=1y sub v equals open paren 2 close paren squared minus 4 open paren 2 close paren plus 5 equals 4 minus 8 plus 5 equals 1 ✅ Resources for Full Solutions (GDZ)
x−32the fraction with numerator x minus 3 and denominator 2 end-fraction . Grade 9: Quadratic Functions Find the coordinates of the vertex of the parabola Identify coefficients. For the quadratic Calculate the x-coordinate ( ). Use the formula