Question

Can someone tell me how to solve this and give me the answer please?

Answer 1

9h^2+42h+49 no common factors trial and error try first term and last term all sings are positive since last term and middle terms are possitive factor leading term and coeficient and try those 9=3*3 49=7*7 (3h+7)(3h+7) 9h^2+21h+21h+49 9h^2+42h+49 true (3h+7)(3h+7)=(3x+7)^2 answer is (3h+7)^2 answe ris ths second one