Simplifica las siguientes expresiones eliminando los símbolos de agrupación y realizando las operaciones indicadas (4w2−3w+7)−(2w2+w−6)−(w2−4w+15)= 4w2−3w+7−2w2+w−6−w2−4w+15=

Ineed me i stuck and i don’t want to get it wrong

Which set of lengths could represent the sides of a triangle? a. 3, 7, 10 b. 4, 5, 10 c. 6, 8, 14 d. 12, 6, 7

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000