Use suitable identity and find the product of: (2a-7)(2a-7)

Mathematics

2 answers:

NeTakaya2 years ago

5 0

$\\ \sf\longmapsto (2a-7)(2a-7)$

$\\ \sf\longmapsto (2a-7)^2$

(a-b)^2=a^2+b^2-2ab

$\\ \sf\longmapsto 2a^2-2(2a)(7)+49$

$\\ \sf\longmapsto 4a^2-28a+29$

Georgia [21]2 years ago

3 0

Answer:

=4a2−28a+49

Step-by-step explanation:

(2a−7)(2a−7)

=(2a+−7)(2a+−7)

=(2a)(2a)+(2a)(−7)+(−7)(2a)+(−7)(−7)

=4a2−14a−14a+49

You might be interested in

A 35-year-old G3P3 woman requests contraception. Her youngest child is seven years old. Her periods have been regular since she

Olin [163]

Answer:

E. Deep venous thrombosis

Step-by-step explanation:

According to a different source, these are the options that come with this question:

A. Depression

B. Smoking history

C. Severe nausea on combined oral contraceptives

D. Lactation history

E. Deep venous thrombosis

This woman would be a good candidate for the progestin-only pill because of her deep venous thrombosis, as contraindications to estrogen include a history of thromboembolic disease. Other contraindications include women who are lactating, women over 35 who smoke or women that have experienced severe nausea when using combined pills.

8 0

3 years ago

How do you find the area of a regular polygon?

Bogdan [553]

Each of the triangles are equal in base length, height, and area. Remember the formula for the area of a triangle. The area of any triangle is 1/2 times the length of the base (which, in the polygon, is the length of a side) multiplied by the height (which is the same as the apothem in regular polygon).

6 0

3 years ago

What is the product of the two factors? (X 4/3) (X 2/3)

SpyIntel [72]

Answer:

$\frac{8}{9}{x}^{2}$

Step-by-step explanation:

All you do is multiply straight across [both denominator and numerator] to arrive at your answer. Then, multiplying two x's together gives you ${x}^{2}$ . So, with all that being said, you have your answer.