Question

Find the value of the polynomial (5x-2) (3x+2) 8f x= -1
answer kar do yaagalat answer mat dena​

Answer 1

Answer:

$(5x - 2)(3x + 2) \\ if \: x = - 1 \\ then \\ (5 \times - 1 - 2)(3 \times - 1 + 2) \\ ( - 5 - 2)( - 3 + 2) \\ ( - 5 \times - 3 )+ ( - 5 \times + 2 )+( - 2 \times - 3) +( - 2 \times + 2 )\\ + 15 - 10 + 6 - 4 \\ + 15 + 6 - 10 - 4 \\ 21 - 14 \\ = > 7$

Answer 2

Answer:

(5x−2)(3x+2)

ifx=−1

then

(5×−1−2)(3×−1+2)

(−5−2)(−3+2)

(−5×−3)+(−5×+2)+(−2×−3)+(−2×+2)

+15−10+6−4

+15+6−10−4

21−14

=>7