FACTORISE this question 9th to 23 on paper thx no spawn
Answers
solution:
9)45ab²20ac²
=5a(9b²-4c²)
=5a[(3b²)-(2c²)]
= 5a[(3b+2c)(3b-2c)]ans-
10)-27a²b²+12a²c²
=-3a^(9b^-4c^) ans-
11)-49a³+64ab²
=a(-49a²+64b²) ans-
12)-81x³y³+64xy
=xy(-81x²y²+64)
13)16x⁴-1
=( 4x²)²-(1)²
=(4x²+1)(4x²-1) ans-
14) 16y⁴-625
=(4y²)²-(25)²
=(4y²+25)(4y²-25) ans-
15) 81z⁴-256y⁴
= (9z²)²-(16y²)²
=(9z²-16y²)(9z²+16y²) ans-
16)t⁴-16m⁴n⁴
=(t²)²-(4m²n²)²
=(t²+4m²n²)(t²-4m²n²) ans-
17)x²+2xy+y²-1
= (x+y)²-(1)²
=(x+y+1)(x+y-1) ans-
18)1-y²-2yz-z²
=1-(y²+2yz+z²)
= (1)²-(y+z)²
=(1+y+z)(1-y+z) ans-
19)9-y²+2xy-x²
=(3)²-(y²-2xy+x²)
= (3)²-(y-x)²
=(3+y-x)(3-y-x) ans-
20)4a²+12ab+9b²-25z²
=(2a)²+2×3×2×a×b+(3b)²-(5z)²
=(2a+3b)²-(5z)²
=(2a+3b+5z)(2a+3b-5z) ans-
21)?sorry
22) y6-6y³+9-z⁴
=(y³)²-2×3×y³+(3)²-z⁴
=(y³-3)²-z⁴ ans-
23)16c²-9a²-6ab-b²
=16c²-(9a²-6ab+b²)
=16c²-(3a+b)
=(4c)²-(3a+b)² ans-
I hope! I have helped u.
Answer:
Sorry yar ye 5 points ka nhi h
Step-by-step explanation: