A) Find a linear combination w of the linearly independent vectors v and u that is perpendicular to u. (b) For the 2-column matrix, find Q (orthonormal columns) and R (2 by 2 upper triangular) so that A= QR.​

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?

Which number produces an irrational number multiplied by 1/3