(i) 3g+2h - 4
(ii) g2+h2 - h
(iii) 4g + h ------------ 5
help i dont get this if you need a image please say it :).
Replace g with 2 and replace h with 3 in the expressions:
i) 3g + 2h - 4 = 3(2) + 2(3) - 4 = 6 + 6 - 4 = 8
ii) g² + h² - h = (2)² + (3)² - (3) = 4 + 9 - 3 = 10
iii) 4g + h = 4(2) + 3 = 8 + 3 = 11
