Question

Hello everyone pls answer this question

pls sunday is my exam class 9

so pls answer 1) if AC= 1/2 AB AND EF= 1/2ED FIND CB= EB FROM EUCLIDS GEOMETRY 2) 8xy³+125xz³ - factorise - from the chapter polynomials

Answer 1

2. 8xy³+125xz³    =x[(2y)³+(5z)³]    =x[(2y+5z)(4y²-2y.5z+25z²)]    =X(2y+5z)(4y²-10yz+25z²)   NOTE: Formula used:(a³+b³)=(a+b)(a²-ab+b²) I am not able to solve question no. 1 but I knew question no. 2. So I solved 2nd first. Hope it helps.