Question

1.Use a suitable identity to get each of the following products:
(i) (2 − 7) (2 − 7)
(ii) (3a- 1/2) (3a-1/2)
(iii) (-a+c) (-a+c)
2.Find the following squares by using the identities:
(i) (0.4p-0.5q)square
(ii) (2xy+5y)square
Pls help me with these questions. Pls do not give irrelevant answers or else i will report.

Answer 1

Step-by-step explanation:

1.Use a suitable identity to get each of the following products:

(i) (2 − 7) (2 − 7)

(ii) (3a- 1/2) (3a-1/2)

(iii) (-a+c) (-a+c)

2.Find the following squares by using the identities:

(i) (0.4p-0.5q)square

(ii) (2xy+5y)square

Pls help me with these questions. Pls do not give irrelevant answers or else i will report.

Answer 2

Step-by-step explanation:

1.

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

$( - 5) \times ( - 5)$

$25$

2.

$(3a - \frac{1}{2} ) (3a - \frac{1}{2} )$

$(3a - \frac{1}{2} ) {}^{2}$

$9 {a}^{2} - 3a + \frac{1}{4}$

3.

3

$( - a + c)( - a + c)$

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

$( - a) {}^{2} - 2ac + c {}^{2}$

${a}^{2} - 2ac + {c}^{2}$

Marked me as barinly