Can someone help to solve this question
Mr Lai take X mins to carve a block of ice to swan, Mr Han takes 25 mins more to carve the same size of ice block to swan. if they carve the block of ice together only take 30 Mins to complete. derive all the above to the following equation
X^2-35X-750 = 0
Secondary 4 eMaths question
PSLE marks the graduation of Primary school students and their entry into Secondary schools as teenagers. Discuss all issues about Secondary schooling here.