Question

I need help with #7

In Problems 5-8, find the derivative, but do not simplify your answer. 5. y = (7x6 – 5x4 + 2x2 – 1)(4x' + 3x? – 5x2 + 3x) 6. y = (9x° – 7x? – 6x)(3x5 – 4x4 + 3x3 – 8) 7. y = (x2 + x + 1)(Vx – 2Vx + 5) 8. y = (5x – 2Vx + 1)(x3 – 5x – 7)

Answer 1

15. y = (72% - 5x" + 2x²-1) (4x² + 3x7_ sx² + 3x) a = 67x -5x4 +92-1) d (4x +387-5x +330) + [4x2° +387-sx?+33) xd (726_5x* +23-1) de = (73°sx"+ex=1) (3628 +21x® -10x+3) + (1x2+3x+sx+3x) (42x%20x +60) dy = (7x8 5x²+2x²-1) (3 6x² +21xé 10x +3) + (4x² + 3x - sx + 3x) (4245 - 20x²+6x)] da da & y = (gx²_787_6x) (3x + 4x + 3x²_8) dy = a[(x - 72 -6x) (3x +4x4 +3x²-8)] olid (922_7x=6)x (3x+42" +33°->) + (3** 4x"43x?s) x (6x-4x2_63) dy = (Gr 7 x 26x) (15x" + 1468 + 9x²) + (3x574x" + 3x 8-3) (812%+49 28 -6)} 7 y = (x²+x+1) (x3 - 2x²² ts) dybe [Cx++x+) (x2x+) (x2+x+1) a (23 - 2x² +5) + (x² – 2x² +s) a (x²+x+1) = (x²+x+1) (1 x 4 x² + (x - 259 +S) (2x+1) da = (x+x+) ( ) + (*+258 +) (ex+1) 11 42 2

(اد" 22 ) 4 (ر) + (1- s7 (1+ و )= ( ) (5 - 3 ) + (s-3) (1- عود )= الوار (523) + (و۔ (بداو - ) =