Simplify 2 by 5 into 4 by 7 + 21 by 35

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Which expression is the factorization of x^2+10+21