Math, asked by keona, 11 months ago

Solve this equation of algebraic expressions:(2a-7)(2a-7)

Answers

Answered by rishikapaul21

8

$(2a - 7)(2a - 7)$

$(2a - 7) ^{2}$

$(2a) ^{2} + (7) ^{2} - 2(2a)(7)$

$4a ^{2} + 49 - 28a$

Answered by swaroopsinha3

10

Answer:

Step-by-step explanation:(2a-7)²=4a²-2.2a.7-49

=4a²-28a-49

Previous Question

Next Question

Similar questions

Physics, 6 months ago

A gun recoils when a bullet is fired. Give reason......

English, 6 months ago

3. Put the words in the brackets at their proper places to form correct statements. One example is done for you. (a) Once a lion and a bear were / over a / deer. [fighting, dead] Once a lion and a bear were fighting over a dead deer. (b) Both to eat the dead. [wanted, animal] Both (c) A was watching fight. [fox, their) (d) He quietly the deer went away. [ate, and] (e) When the lion and the...

Geography, 6 months ago

(c) Chaumier (b) Valet 9) Cornflakes and popcorn are made from (a) wheat (b) maize c) chickpea...

Math, 11 months ago

2) The mystery number has ... A 2 in the Ten Thousands place. A 7 in the Thousands place. A 8 in the Hundreds place. A6 in the Tens place. A5 in the Ones place, What is the mystery number?

English, 11 months ago

Hola mate..! What is the full form of ATM..?

CBSE BOARD XII, 1 year ago

Transition metals are found to be good catalysts explain.

Math, 1 year ago

find the roots of the following cubic number by prime factorisation. a) 3375 b) 13824...

Math, 1 year ago

the salary of a machine depreciates @ 5% every year.if the present value of machine is 150000 what will be its value after 2 years...