Math, asked by lylas, 1 year ago

factorie it by middle term splitting (x^2-4x-21)(x+2)

Answers

Answered by somali03

1

Answer:

use the factors 3 and 7

=(x²+3x-7x-21)(x+2)

=[(x(x+3)-7(x+3)](x+2)

=(x-7)(x+3)(x+2)

so the zeroes are 7, -3, -2.

Step-by-step explanation:

Answered by Nitinmundhra

0

Answer:7 , 3 , -2

Step-by-step explanation:

Attachments:

somali03: it is -3

somali03: multiplication of -7 and -3 is +21 but we need -21 therefore we have to take -7 and +3

lylas: i understand

lylas: thanks

Nitinmundhra: Thank you for correcting me

karan511671: hlo

Previous Question

Next Question

Similar questions

History, 7 months ago

Match the columns: 1. Prime Minister 2 Council of Ministers 3. Vice-President 4. President (a) First citizen of the country (b) Ex-officio Chairman of Rajya Sabha (c) Collective responsibility (d) Link between the Cabinet and the President...

Geography, 7 months ago

hi , what's is what .what to...

Hindi, 7 months ago

दिए गए मुधों के आधार पर कहानी लिखिए। मुडी:- गाँव में मेला देखने वालो की भीड...............सड़क पर प्रवेश द्वार के बीचोबीच बड़ा-सा पत्थर................पत्यारे से टकराकर धोटे बडो का गिरना-पडना............ बहुत देर से लडके का देखना .............लड़के द्वारा पथर हटऻना, उसके नीचे चीट्टी पाना........चीटी में लिखा था.....?पुरस्कार पाना....... सीख और शोषका...

Physics, 1 year ago

will derivation of a combination resistors come for 10th board exam...

English, 1 year ago

democracy is the best form of government essay ...

English, 1 year ago

she alway writes with her left hand. turn it into negative...

Physics, 1 year ago

Two balls A and B of masses ‘m’ and ‘2m’ are in motion with velocities ‘2v’ and ‘v’ respectively. Compare the force needed to stop them at the same time.

Political Science, 1 year ago

who is first law minister...